Seventy years after the liberation of Europe's most infamous death camp, survivors of the mass murders at Auschwitz-Birkenau have returned to the harrowing site to remember the victims and remind the world of the atrocities that took place between 1940 and 1945.
An estimated 1.1 million people were killed at the concentration camp in Poland, 90% of them Jews. Nazi Germany's regime gassed, shot and tortured men women and children who did not fit in with its idea of a German "master race".
Auschwitz survivors walked through the gates today to attend commemorations marking 27 January 27 1945, when the network of camps were liberated by the Soviet Red Army.
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The aged survivors held red roses and laid wreaths at the "death wall" in moving scenes. There will be a service and candle-lighting at Birkenau, the sister death camp in the same complex as Auschwitz.
Survivors were joined by dignitaries and representatives of the Allied forces from around the world, paying respects to the dead and warning "never again".
Today's event is expected to be the last major anniversary that survivors can attend in large numbers.
Auschwitz 70 years on
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Auschwitz survivors walk through the gate of the former Auschwitz concentration camp as they arrive to attend fesitivities to mark the 70th anniversary of the camp's liberation on January 27, 2015 at the Auschwitz-Birkenau memorial site in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:JANEK SKARZYNSKI via Getty Images)
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Auschwitz survivors arrive to attend fesitivities to mark the 70th anniversary of the Nazi death camp's liberation on January 27, 2015 at the Auschwitz-Birkenau memorial site in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:JANEK SKARZYNSKI via Getty Images)
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One of the Survivors stands near the Wall of Death during the 70th anniversary of the liberation of the Nazi German concentration and extermination camp, Auschwitz-Birkenau on January 27, 2015 in Aushwitz, Poland. The day commemorates when the Soviet troops liberated the Nazi concentration camp, Auschwitz-Birkenau, in Poland on January 27, 1945. It is hoped that through remembering these events, people will remember the Holocaust and prevent further genocide from taking place. (credit:Gallo Images via Getty Images)
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US director Steven Spielberg (C) is pictured on the sidelines of the unveiling of a plaque at the former Auschwitz concentration camp on January 27, 2015 at the camp's memorial site in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:JANEK SKARZYNSKI via Getty Images)
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Members of an association of Auschwitz concentration camp survivors walk past a guard tower as they depart after laying wreaths at the execution wall at the former Auschwitz I concentration camp on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Sean Gallup via Getty Images)
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Polish President Bronislaw Komorowski (C), Piotr Cywinski (C-R), director of the Auschwitz-Birkenau museum and Auschwitz survivors arrive to lay down a wreath at the former Auschwitz concentration camp on January 27, 2015 at the camp's memorial site in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:JANEK SKARZYNSKI via Getty Images)
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Polish President Bronislaw Komorowski (C) and Auschwitz survivors lay down a wreath at the death wall of the former Auschwitz concentration camp on January 27, 2015 at the Auschwitz-Birkenau memorial site in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:ODD ANDERSEN via Getty Images)
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Holocaust survivors pay tribute to fallen comrades at the 'death wall' execution spot in the former Auschwitz concentration camp in Oswiecim, Poland, on the 70th anniversary of the liberation of the Nazi death camp on January 27, 2015. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:ODD ANDERSEN via Getty Images)
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A view of Auchwitz Death Camp during the 70th anniversary of the liberation of the Nazi German concentration and extermination camp, Auschwitz-Birkenau on January 27, 2015 in Aushwitz, Poland. The day commemorates when the Soviet troops liberated the Nazi concentration camp, Auschwitz-Birkenau, in Poland on January 27, 1945. It is hoped that through remembering these events, people will remember the Holocaust and prevent further genocide from taking place (credit:Gallo Images via Getty Images)
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Polish President Bronislaw Komorowski (C), Piotr Cywinski (C-R), director of the Auschwitz-Birkenau museum and Auschwitz survivors arrive to lay down a wreath at the former Auschwitz concentration camp on January 27, 2015 at the camp's memorial site in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:JANEK SKARZYNSKI via Getty Images)
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Holocaust survivors pay tribute to fallen comrades at the 'death wall' execution spot in the former Auschwitz concentration camp in Oswiecim, Poland, on the 70th anniversary of the liberation of the Nazi death camp on January 27, 2015. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:ODD ANDERSEN via Getty Images)
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A Holocaust survivor pays tribute to fallen comrades putting her hand on the 'death wall' execution spot in the former Auschwitz concentration camp in Oswiecim, Poland, on the 70th anniversary of the liberation of the Nazi death camp on January 27, 2015. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:ODD ANDERSEN via Getty Images)
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Auschwitz survivors arrive at the former Auschwitz concentration camp to attend fesitivities to mark the 70th anniversary of the camp's liberation on January 27, 2015 at the Auschwitz-Birkenau memorial site in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:JANEK SKARZYNSKI via Getty Images)
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A view of Auchwitz Death Camp during the 70th anniversary of the liberation of the Nazi German concentration and extermination camp, Auschwitz-Birkenau on January 27, 2015 in Aushwitz, Poland. The day commemorates when the Soviet troops liberated the Nazi concentration camp, Auschwitz-Birkenau, in Poland on January 27, 1945. It is hoped that through remembering these events, people will remember the Holocaust and prevent further genocide from taking place (credit:Gallo Images via Getty Images)
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Polish President Bronislaw Komorowski (C), Piotr Cywinski (C-R, hidden), director of the Auschwitz-Birkenau museum and Auschwitz survivors lay down a wreath at the death wall of the former Auschwitz concentration camp on January 27, 2015 at the camp's memorial site in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:ODD ANDERSEN via Getty Images)
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Polish President Bronislaw Komorowski (C), Piotr Cywinski (C-R), director of the Auschwitz-Birkenau museum and Auschwitz survivors arrive to lay down a wreath at the death wall of the former Auschwitz concentration camp on January 27, 2015 at the camp's memorial site in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:ODD ANDERSEN via Getty Images)
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Polish President Bronislaw Komorowski (L) looks on as members of an association of Auschwitz concentration camp survivors arrive to lay wreaths and flowers at the execution wall at the former Auschwitz I concentration camp on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Sean Gallup via Getty Images)
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A member of an association of Auschwitz survivors departs following a wreath-laying ceremony at the execution wall at the former Auschwitz I concentration camp on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Sean Gallup via Getty Images)
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Members of an association of Auschwitz survivors, including one showing a medal given to Polish former concentration camp prisoners, depart after laying wreaths at the execution wall at the former Auschwitz I concentration camp on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Sean Gallup via Getty Images)
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A member of an association of Auschwitz survivors stands at the execution wall during a wreath-laying ceremony at the former Auschwitz I concentration camp on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Sean Gallup via Getty Images)
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Auschwitz survivor Eugenivsz Dabrowski visits the execution wall on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Ian Gavan via Getty Images)
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A member of an association of Auschwitz concentration camp survivors wears an armband with a barbed-wire pattern at a wreath-laying ceremony at the execution wall at the former Auschwitz I concentration camp on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Sean Gallup via Getty Images)
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A view of Auchwitz Death Camp during the 70th anniversary of the liberation of the Nazi German concentration and extermination camp, Auschwitz-Birkenau on January 27, 2015 in Aushwitz, Poland. The day commemorates when the Soviet troops liberated the Nazi concentration camp, Auschwitz-Birkenau, in Poland on January 27, 1945. It is hoped that through remembering these events, people will remember the Holocaust and prevent further genocide from taking place (credit:Gallo Images via Getty Images)
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Polish President Bronislaw Komorowski (L) looks on as members of an association of Auschwitz concentration camp survivors arrive to lay wreaths at the execution wall at the former Auschwitz I concentration camp on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Sean Gallup via Getty Images)
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Auschwitz survivors visit the execution wall on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Ian Gavan via Getty Images)
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Auschwitz survivor Eugenivsz Dabrowski visits the execution wall on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Ian Gavan via Getty Images)
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Auschwitz survivors visit the execution wall on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Ian Gavan via Getty Images)
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Bronislaw Komorowski departs after visiting the execution wall on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Ian Gavan via Getty Images)
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Auschwitz survivors walk away from the execution wall on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Ian Gavan via Getty Images)
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Auschwitz survivors visit the execution wall on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Ian Gavan via Getty Images)
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Members of an association of Auschwitz concentration camp survivors depart after laying wreaths at the execution wall at the former Auschwitz I concentration camp on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Sean Gallup via Getty Images)
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Members of an association of Auschwitz concentration camp survivors depart after laying wreaths at the execution wall at the former Auschwitz I concentration camp on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Sean Gallup via Getty Images)
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Members of an association of Auschwitz concentration camp survivors arrive to lay wreaths and flowers at the execution wall at the former Auschwitz I concentration camp on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Sean Gallup via Getty Images)
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A member of an association of Auschwitz concentration camp survivors walks through the infamous 'Arbeit Macht Frei' entrance gate after laying wreaths with other members at the execution wall at the former Auschwitz I concentration camp on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Sean Gallup via Getty Images)
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Holocaust survivors greet each others as they arrive to pay tribute to fallen comrades in the former Auschwitz concentration camp in Oswiecim, Poland, on the 70th anniversary of the liberation of the Nazi death camp on January 27, 2015. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:JANEK SKARZYNSKI via Getty Images)
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Members of an association of Auschwitz concentration camp survivors, including one bearing a rose, arrive to lay wreaths at the execution wall at the former Auschwitz I concentration camp on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Sean Gallup via Getty Images)
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Holocaust survivors arrive to pay tribute to fallen comrades in the former Auschwitz concentration camp in Oswiecim, Poland, on the 70th anniversary of the liberation of the Nazi death camp on January 27, 2015. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:JANEK SKARZYNSKI via Getty Images)
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Members of an association of Auschwitz concentration camp survivors arrive to lay wreaths at the execution wall at the former Auschwitz I concentration camp on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Sean Gallup via Getty Images)
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Members of an association of Auschwitz concentration camp survivors arrive to lay wreaths at the execution wall at the former Auschwitz I concentration camp on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Sean Gallup via Getty Images)
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Survivors walk out the gate with the sign saying 'Work makes you free' after paying tribute to fallen comrades at the 'death wall' execution spot in the former Auschwitz concentration camp in Oswiecim, Poland, on the 70th anniversary of the liberation of the Nazi death camp on January 27, 2015. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:ODD ANDERSEN via Getty Images)
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Auschwitz survivor Miroslaw Celka walks out the gate with the sign saying 'Work makes you free' after paying tribute to fallen comrades at the 'death wall' execution spot in the former Auschwitz concentration camp in Oswiecim, Poland, on the 70th anniversary of the liberation of the Nazi death camp on January 27, 2015. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:ODD ANDERSEN via Getty Images)
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A stone with a message to the fallen is seen in a crack in the 'death wall' execution spot in the former Auschwitz concentration camp in Oswiecim, Poland, on the 70th anniversary of the liberation of the Nazi death camp on January 27, 2015. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:ODD ANDERSEN via Getty Images)
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Survivors walk past a watch tower after paying tribute to fallen comrades at the 'death wall' execution spot in the former Auschwitz concentration camp in Oswiecim, Poland, on the 70th anniversary of the liberation of the Nazi death camp on January 27, 2015. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:ODD ANDERSEN via Getty Images)
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Polish President Bronislaw Komorowski (C-L), Piotr Cywinski (C-R), director of the Auschwitz-Birkenau museum and survivors pay tribute to Nazi victims at the 'death wall' execution spot in the former Auschwitz concentration camp in Oswiecim, Poland, on the 70th anniversary of the liberation of the Nazi death camp on January 27, 2015. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:ODD ANDERSEN via Getty Images)
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Auschwitz survivor Miroslaw Celka (R) arrives to pay tribute to fallen comrades in the former Auschwitz concentration camp in Oswiecim, Poland, on the 70th anniversary of the liberation of the Nazi death camp on January 27, 2015. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:JANEK SKARZYNSKI via Getty Images)
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Survivors pay tribute to fallen comrades at the 'death wall' execution spot in the former Auschwitz concentration camp in Oswiecim, Poland, on the 70th anniversary of the liberation of the Nazi death camp on January 27, 2015. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:ODD ANDERSEN via Getty Images)
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Survivors pay tribute to fallen comrades at the 'death wall' execution spot in the former Auschwitz concentration camp in Oswiecim, Poland, on the 70th anniversary of the liberation of the Nazi death camp on January 27, 2015. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:ODD ANDERSEN via Getty Images)
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Survivors walk in their former prison after paying tribute to fallen comrades at the 'death wall' execution spot in the former Auschwitz concentration camp in Oswiecim, Poland, on the 70th anniversary of the liberation of the Nazi death camp on January 27, 2015. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:ODD ANDERSEN via Getty Images)
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Survivors walk in their former prison after paying tribute to fallen comrades at the 'death wall' execution spot in the former Auschwitz concentration camp in Oswiecim, Poland, on the 70th anniversary of the liberation of the Nazi death camp on January 27, 2015. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:ODD ANDERSEN via Getty Images)
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Members of an association of Auschwitz concentration camp survivors depart after laying wreaths at the execution wall at the former Auschwitz I concentration camp on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Sean Gallup via Getty Images)
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Holocaust survivors talk as they arrive to pay tribute to fallen comrades in the former Auschwitz concentration camp in Oswiecim, Poland, on the 70th anniversary of the liberation of the Nazi death camp on January 27, 2015. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:JANEK SKARZYNSKI via Getty Images)
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Auschwitz survivors walk away from the execution wall on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (credit:Ian Gavan via Getty Images)
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Auschwitz survivors arrive at the former Auschwitz concentration camp to attend fesitivities to mark the 70th anniversary of the camp's liberation on January 27, 2015 at the Auschwitz-Birkenau memorial site in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:JANEK SKARZYNSKI via Getty Images)
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US director Steven Spielberg (3rd R) looks on as the President of the World Jewish Congress Ronald Lauder (L) unveils a plaque at the former Auschwitz concentration camp on January 27, 2015 at the camp's memorial site in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. (credit:JANEK SKARZYNSKI via Getty Images)
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AUSCHWITZ, POLAND - JANUARY 27: (SOUTH AFRICA AND POLAND OUT) Survivors laying wreaths at the Wall of Death during the 70th anniversary of the liberation of the Nazi German concentration and extermination camp, Auschwitz-Birkenau on January 27, 2015 in Aushwitz, Poland. The day commemorates when the Soviet troops liberated the Nazi concentration camp, Auschwitz-Birkenau, in Poland on January 27, 1945. It is hoped that through remembering these events, people will remember the Holocaust and prevent further genocide from taking place (Photo by Adam Jagielak/Getty Images Poland/Getty Images) (credit:Gallo Images via Getty Images)
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OSWIECIM, POLAND - JANUARY 27: Yuda Widawski, 96, who is among the oldest survivors of the Auschwitz concentration camp, arrives for ceremonies in a tent built over the original entrance gate to Auschwitz-Birkenau marking the 70th anniversary of the liberation of Auschwitz on January 27, 2015 in Oswiecim, Poland. International heads of state, dignitaries and over 300 Auschwitz survivors are attending the commemorations for the 70th anniversary of the liberation of Auschwitz by Soviet troops on 27th January, 1945. Auschwitz was among the most notorious of the concentration camps run by the Nazis during WWII and whilst it is impossible to put an exact figure on the death toll it is alleged that over a million people lost their lives in the camp, the majority of whom were Jewish. (Photo by Sean Gallup/Getty Images) (credit:Sean Gallup via Getty Images)
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Polish born oldest known Holocaust survivor and Yehuda Widawski from Tel Aviv arrives at a tent build in front of the entrance of the former Nazi concentration camp Auschwitz-Birkenau for a main ceremony to mark the 70th anniversary of the liberation of the death camp on January 27, 2015 in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. AFP PHOTO / ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images) (credit:ODD ANDERSEN via Getty Images)
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Polish born oldest known Holocaust survivor and Yehuda Widawski (L) from Tel Aviv arrives at a tent build in front of the entrance of the former Nazi concentration camp Auschwitz-Birkenau for a main ceremony to mark the 70th anniversary of the liberation of the death camp on January 27, 2015 in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. AFP PHOTO / ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images) (credit:ODD ANDERSEN via Getty Images)
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US director Steven Spielberg (2ndL) films with his smartphone as he sits next to the President of the World Jewish Congress Ronald Lauder (2ndR) at a tent build in front of the entrance of the former Nazi concentration camp Auschwitz-Birkenau for the main ceremony to mark the 70th anniversary of the liberation of the death camp on January 27, 2015 in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. AFP PHOTO / ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images) (credit:ODD ANDERSEN via Getty Images)
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Chairman of the Nobel Peace committee and Secretary General of the Council of Europe Thorbjoern Jagland (C) arrives at a tent build in front of the entrance of the former Nazi concentration camp Auschwitz-Birkenau for the main ceremony to mark the 70th anniversary of the liberation of the death camp on January 27, 2015 in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. AFP PHOTO / ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images) (credit:ODD ANDERSEN via Getty Images)
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UK Defence Minister Philip Hammond (C) arrives at a tent build in front of the entrance of the former Nazi concentration camp Auschwitz-Birkenau for the main ceremony to mark the 70th anniversary of the liberation of the death camp on January 27, 2015 in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. AFP PHOTO / ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images) (credit:ODD ANDERSEN via Getty Images)
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AYR, UNITED KINGDOM - JANUARY 27: Holocaust survivor Ela Weissberger, aged 84 looks at one of only 70 special candles, and the first in Scotland,commissioned to mark 70 years since the liberation of Auschwitz-Birkenau on January 27, 2015 in Ayr,Scotland. People across Britain will come together today to remember and honour the millions killed in the Holocaust and mark the 70th anniversary of the liberation of Auschwitz Birkenau. (Photo by Jeff J Mitchell/Getty Images) (credit:Jeff J Mitchell via Getty Images)
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Swedish Crown Princess Victoria arrives at a tent build in front of the entrance of the former Nazi concentration camp Auschwitz-Birkenau for the main ceremony to mark the 70th anniversary of the liberation of the death camp on January 27, 2015 in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. AFP PHOTO / ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images) (credit:ODD ANDERSEN via Getty Images)
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Danish Crown Prince Frederik arrives at a tent build in front of the entrance of the former Nazi concentration camp Auschwitz-Birkenau for the main ceremony to mark the 70th anniversary of the liberation of the death camp on January 27, 2015 in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. AFP PHOTO / ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images) (credit:ODD ANDERSEN via Getty Images)
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(L-R) Austrian President Heinz Fischer, Queen Maxima and King Willem-Alexander of the Netherlands, Polish President Bronislaw Komorowski and his wife Anna, King Philippe of Belgium attend the main ceremony to mark the 70th anniversary of the liberation of the death camp on January 27, 2015 at a tent build in front of the entrance of the former Nazi concentration camp Auschwitz-Birkenau in Oswiecim, Poland. Sevent years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. AFP PHOTO / ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images) (credit:ODD ANDERSEN via Getty Images)
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US director Steven Spielberg (L), a donor for the '18 Pillars of Remembrance project, sits inside a tent erected in front of the entrance of the former Nazi concentration camp Auschwitz-Birkenau during the main ceremony to mark the 70th anniversary of the liberation of the death camp on January 27, 2015 in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. AFP PHOTO / ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images) (credit:ODD ANDERSEN via Getty Images)
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US director Steven Spielberg (C), a donor for the '18 Pillars of Remembrance project, is applauded at a tent erected in front of the entrance of the former Nazi concentration camp Auschwitz-Birkenau during the main ceremony to mark the 70th anniversary of the liberation of the death camp on January 27, 2015 in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. AFP PHOTO / ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images) (credit:ODD ANDERSEN via Getty Images)
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President of the World Jewish Congress Ronald Lauder delivers a speech in front of survivors and personalities at a tent erected in front of the entrance of the former Nazi concentration camp Auschwitz-Birkenau during the main ceremony to mark the 70th anniversary of the liberation of the death camp on January 27, 2015 in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. AFP PHOTO / ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images) (credit:ODD ANDERSEN via Getty Images)
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Guests and world leaders attend the main ceremony to mark the 70th anniversary of the liberation of the death camp on January 27, 2015 at a tent build in front of the entrance of the former Nazi concentration camp Auschwitz-Birkenau in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. AFP PHOTO / ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images) (credit:ODD ANDERSEN via Getty Images)
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Polish born Holocaust survivor and President of the International Auschwitz Committee ( IAC ) Roman Kent delivers a speech in front of survivors and personalities at a tent erected in front of the entrance of the former Nazi concentration camp Auschwitz-Birkenau during the main ceremony to mark the 70th anniversary of the liberation of the death camp on January 27, 2015 in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. AFP PHOTO / ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images) (credit:ODD ANDERSEN via Getty Images)
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Survivors attend the main ceremony to mark the 70th anniversary of the liberation of the death camp on January 27, 2015 at a tent build in front of the entrance of the former Nazi concentration camp Auschwitz-Birkenau in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. AFP PHOTO / ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images) (credit:ODD ANDERSEN via Getty Images)
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Polish born Holocaust survivor and President of the International Auschwitz Committee ( IAC ) Roman Kent delivers a speech in front of survivors and personalities at a tent erected in front of the entrance of the former Nazi concentration camp Auschwitz-Birkenau during the main ceremony to mark the 70th anniversary of the liberation of the death camp on January 27, 2015 in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. AFP PHOTO / ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images) (credit:ODD ANDERSEN via Getty Images)
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President Petro Poroshenko of Ukraine (L) and his wife Maryna arrive at a tent build in front of the entrance of the former Nazi concentration camp Auschwitz-Birkenau for the main ceremony to mark the 70th anniversary of the liberation of the death camp on January 27, 2015 in Oswiecim, Poland. Seventy years after the liberation of Auschwitz, ageing survivors and dignitaries gather at the site synonymous with the Holocaust to honour victims and sound the alarm over a fresh wave of anti-Semitism. AFP PHOTO / ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images) (credit:ODD ANDERSEN via Getty Images)