NATO celebrates its 75th anniversary in a climate of uncertainty and tensions. The Alliance is preparing in particular for a possible return of Trump to the White House, which would call into question lasting support for Ukraine.

The original of the treaty left the State Department on Tuesday, where it is kept, to reach, under good escort, NATO headquarters in Brussels. “ This is the first time that this document has come out of the United States,” NATO said. The meeting is also used to celebrate the various waves of eastern enlargement that the organization has experienced.