(01 of24)
Open Image ModalProtesters taking part in a demonstration by the Greek Solidarity Campaign in Trafalgar Square, central London. (credit:Yui Mok/PA Wire)
(02 of24)
Open Image ModalProtesters taking part in a demonstration by the Greek Solidarity Campaign in Trafalgar Square, central London. (credit:Yui Mok/PA Wire)
(03 of24)
Open Image ModalAn anti-austerity demonstrators attend a rally in Trafalgar Square in central London on July 4, 2015 in solidarity with those voting 'No' in Greece's forthcoming referendum. Greece braced itself Saturday ahead of a make-or-break bailout referendum as polls showed the 'Yes' and 'No' camps neck and neck and uncertainty rose over the future of the country's battered economy. AFP PHOTO / JACK TAYLOR (Photo credit should read JACK TAYLOR/AFP/Getty Images) (credit:JACK TAYLOR via Getty Images)
(04 of24)
Open Image ModalProtesters taking part in a demonstration by the Greek Solidarity Campaign in Trafalgar Square, central London. (credit:Yui Mok/PA Wire)
(05 of24)
Open Image ModalProtesters taking part in a demonstration by the Greek Solidarity Campaign in Trafalgar Square, central London. (credit:Yui Mok/PA Wire)
(06 of24)
Open Image ModalProtesters taking part in a demonstration by the Greek Solidarity Campaign in Trafalgar Square, central London. (credit:Yui Mok/PA Wire)
(07 of24)
Open Image ModalProtesters taking part in a demonstration by the Greek Solidarity Campaign in Trafalgar Square, central London. (credit:Yui Mok/PA Wire)
(08 of24)
Open Image ModalProtesters taking part in a demonstration by the Greek Solidarity Campaign in Trafalgar Square, central London. (credit:Yui Mok/PA Wire)
(09 of24)
Open Image ModalProtesters taking part in a demonstration by the Greek Solidarity Campaign in Trafalgar Square, central London. (credit:Yui Mok/PA Wire)
(10 of24)
Open Image ModalProtesters taking part in a demonstration by the Greek Solidarity Campaign in Trafalgar Square, central London. (credit:Yui Mok/PA Wire)
(11 of24)
Open Image ModalProtesters taking part in a demonstration by the Greek Solidarity Campaign in Trafalgar Square, central London. PRESS ASSOCIATION Photo. Picture date: Saturday July 4, 2015. See PA story POLITICS Greece. Photo credit should read: Yui Mok/PA Wire (credit:Yui Mok/PA Wire)
(12 of24)
Open Image ModalJeremy Corbyn MP speaks during a protest against the European Central Bank, in Trafalgar Square, London, over Greece's debt repayments. (credit:Daniel Leal-Olivas/PA Wire)
(13 of24)
Open Image ModalCaroline Lucas MP speaks during a protest against the European Central Bank, in Trafalgar Square, London, over Greece's debt repayments. (credit:Daniel Leal-Olivas/PA Wire)
(14 of24)
Open Image ModalDemonstrators holding letters to form a banner take part in a protest against the European Central Bank, in Trafalgar Square, London, over Greece's debt repayments. (credit:Daniel Leal-Olivas/PA Wire)
(15 of24)
Open Image ModalDemonstrators holding placards take part in a protest against the European Central Bank, in Trafalgar Square, London, over Greece's debt repayments. (credit:Daniel Leal-Olivas/PA Wire)
(16 of24)
Open Image ModalDemonstrators take part in a protest against the European Central Bank, in Trafalgar Square, London, over Greece's debt repayments. (credit:Daniel Leal-Olivas/PA Wire)
(17 of24)
Open Image ModalA demonstrator holds a sign during a protest against the European Central Bank, in Trafalgar Square, London, over Greece's debt repayments. (credit:Daniel Leal-Olivas/PA Wire)
(18 of24)
Open Image ModalPolice stand outside a Topshop store near Trafalgar Square during the End Austerity Now rally in London. (credit:Daniel Leal-Olivas/PA Wire)
(19 of24)
Open Image ModalAnti-austerity demonstrators hold placards and applaud at a rally in Trafalgar Square in central London on July 4, 2015 in solidarity with those voting 'No' in Greece's forthcoming referendum. Greece braced itself Saturday ahead of a make-or-break bailout referendum as polls showed the 'Yes' and 'No' camps neck and neck and uncertainty rose over the future of the country's battered economy. AFP PHOTO / JACK TAYLOR (Photo credit should read JACK TAYLOR/AFP/Getty Images) (credit:JACK TAYLOR via Getty Images)
(20 of24)
Open Image ModalLeader of the Green Party of England and Wales, Natalie Bennett addresses the crowd in Trafalgar Square in central London on July 4, 2015 in solidarity with those voting 'No' in Greece's forthcoming referendum. Greece braced itself Saturday ahead of a make-or-break bailout referendum as polls showed the 'Yes' and 'No' camps neck and neck and uncertainty rose over the future of the country's battered economy. AFP PHOTO / JACK TAYLOR (Photo credit should read JACK TAYLOR/AFP/Getty Images) (credit:JACK TAYLOR via Getty Images)
(21 of24)
Open Image ModalAn anti-austerity demonstrator puts up signs reading 'No Deal' at a rally in Trafalgar Square in central London on July 4, 2015 in solidarity with those voting 'No' in Greece's forthcoming referendum. Greece braced itself Saturday ahead of a make-or-break bailout referendum as polls showed the 'Yes' and 'No' camps neck and neck and uncertainty rose over the future of the country's battered economy. AFP PHOTO / JACK TAYLOR (Photo credit should read JACK TAYLOR/AFP/Getty Images) (credit:JACK TAYLOR via Getty Images)
(22 of24)
Open Image ModalAn anti-austerity demonstrators attend a rally in Trafalgar Square in central London on July 4, 2015 in solidarity with those voting 'No' in Greece's forthcoming referendum. Greece braced itself Saturday ahead of a make-or-break bailout referendum as polls showed the 'Yes' and 'No' camps neck and neck and uncertainty rose over the future of the country's battered economy. AFP PHOTO / JACK TAYLOR (Photo credit should read JACK TAYLOR/AFP/Getty Images) (credit:JACK TAYLOR via Getty Images)
(23 of24)
Open Image ModalAnti-austerity demonstrators hold placards at a rally in Trafalgar Square in central London on July 4, 2015 in solidarity with those voting 'No' in Greece's forthcoming referendum. Greece braced itself Saturday ahead of a make-or-break bailout referendum as polls showed the 'Yes' and 'No' camps neck and neck and uncertainty rose over the future of the country's battered economy. AFP PHOTO / JACK TAYLOR (Photo credit should read JACK TAYLOR/AFP/Getty Images) (credit:JACK TAYLOR via Getty Images)
(24 of24)
Open Image ModalAnti-austerity demonstrators hold placards and cheer at a rally in Trafalgar Square in central London on July 4, 2015 in solidarity with those voting 'No' in Greece's forthcoming referendum. Greece braced itself Saturday ahead of a make-or-break bailout referendum as polls showed the 'Yes' and 'No' camps neck and neck and uncertainty rose over the future of the country's battered economy. AFP PHOTO / JACK TAYLOR (Photo credit should read JACK TAYLOR/AFP/Getty Images) (credit:JACK TAYLOR via Getty Images)