<Table> Treaty of Friendship , Cooperation , and Mutual Assistance <Tr> <Td colspan="2"> Russian : Договор о дружбе , сотрудничестве и взаимной помощи </Td> </Tr> <Tr> <Td colspan="2"> </Td> </Tr> <Tr> <Td colspan="2"> Member states in 1990 ( dark green ) Former member states ( light green ) </Td> </Tr> <Tr> <Th> Formation </Th> <Td> 14 May 1955 in Warsaw , Poland </Td> </Tr> <Tr> <Th> Dissolved </Th> <Td> 1 July 1991 </Td> </Tr> <Tr> <Th> Type </Th> <Td> Military alliance </Td> </Tr> <Tr> <Th> Headquarters </Th> <Td> Moscow , Russian SFSR , Soviet Union </Td> </Tr> <Tr> <Th> Membership </Th> <Td> Albania ( withdrew in 1968 ) Bulgaria Czechoslovakia East Germany Hungary Poland Romania Soviet Union </Td> </Tr> <Tr> <Th> Supreme Commander </Th> <Td> Petr Lushev ( last ) </Td> </Tr> <Tr> <Th> Chief of Combined Staff </Th> <Td> Vladimir Lobov ( last ) </Td> </Tr> </Table>
countries in the warsaw pact during the cold war
Albania Bulgaria Czechoslovakia East Germany Hungary Poland Romania Soviet Union