Treaty of Friendship, Cooperation, and Mutual Assistance Russian: Договор о дружбе, сотрудничестве и взаимной помощи Member states in 1990 (dark green) Former member states (light green) Formation 14 May 1955 in Warsaw, Poland Dissolved 1 July 1991 Type Military alliance Headquarters Moscow, Russian SFSR, Soviet Union Membership Albania (withdrew in 1968) Bulgaria Czechoslovakia East Germany Hungary Poland Romania Soviet Union Supreme Commander Petr Lushev (last) Chief of Combined Staff Vladimir Lobov (last)
which states were part of the warsaw pact alliance
Albania Bulgaria Czechoslovakia East Germany Hungary Poland Poland Romania Soviet Union Soviet Union