75 years of the North Atlantic Treaty: how NATO became an alliance of 32 states. Meeting in Brussels since Wednesday, the foreign ministers of the Atlantic Alliance are celebrating the anniversary of the signing of the text.

In 75 years, NATO has gone from a defensive politico-military agreement made up of 12 Western states to an alliance which today brings together around the United States the overwhelming majority of the European continent as well as Canada. On this anniversary date, Le Figaro retraces the successive enlargements of the NATO Organization.