Seventy years ago, in the wake of WWII, 12 countries came together to form a military and political alliance. The North Atlantic Treaty Organisation was firstly needed for collective defence against a growing Soviet Bloc. Article 5 of the treaty, which states that an attack on any member would be considered an attack on the group, has acted as a strong deterrent for the past 70 years. It was only invoked once in NATO history, in the wake of the 9/11 attacks. In recent years NATO has come under attack by US Commander-in-Chief Donald Trump. NATO Secretary-General Jens Stoltenberg addressed the US Congress on invitation by Nancy Pelosi on the historic anniversary.
The five things you need to know about politics today.
'The time for talk ended last night.'
Nato has reported an "unusual" spike in Russian military flights in European airspace after British Royal Air Force (RAF
Ensure captions are turned on when viewing the video above... Norway's prime minister spent the day working as a taxi driver
Mass killer Anders Breivik is being interrogated by police in Norway for a second time, a week after he massacred 76 people
Up to 150,000 Norwegians gathered in Oslo with red and white roses on Monday to show solidarity with the 76 people who were
If there was really ever such a thing as a hard rain falling, it fits the description of the rain that has pounded down on Oslo ever since the terror attack last Friday.
Let's hope that Norway's leaders stay true to their promise of retaliating Friday's attacks 'with more democracy' - and that other leaders pay heed to it, too.