Treaty of Berlin
The name
Treaty of Berlin usually denotes the Final Act (13 July 1878) of the Congress of Berlin, but is also used to describe the separate post-
World War I peace of 25 August 1921 between the
United States and
Germany and the agreement of 24 April 1926 under which Germany and the
Soviet Union each pledged neutrality in the event of an attack on the other by a third party.