On 25 February 1991, the Pact was declared at an end at a meeting of defense and foreign ministers from the remaining member states meeting in Hungary. On 1 July 1991, the Czechoslovak President Václav Havel formally declared an end to the Warsaw Treaty Organization of Friendship, Co-operation, and Mutual Assistance which had been established in 1955. The USSR itself was dissolved in December 1991.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): The Pact ended at a 1 July 1991 meeting in which country?
unanswerable