Khrushchev sought to find a lasting solution to the problem of a divided Germany and of the enclave of West Berlin deep within East German territory. In November 1958, calling West Berlin a "malignant tumor", he gave the United States, United Kingdom and France six months to conclude a peace treaty with both German states and the Soviet Union. If one was not signed, Khrushchev stated, the Soviet Union would conclude a peace treaty with East Germany. This would leave East Germany, which was not a party to treaties giving the Western Powers access to Berlin, in control of the routes to the city.[179] This ultimatum caused dissent among the Western Allies, who were reluctant to go to war over the issue.[180] Khrushchev, however, repeatedly extended the deadline.