No agreements were signed at the Malta Summit. Its main purpose was to provide the two superpowers, the United States and the Soviet Union, with an opportunity to discuss the rapid changes taking place in Europe with the lifting of the Iron Curtain, which had separated the Eastern Bloc from Western Europe for four decades. The summit is viewed by some observers as the official end of the Cold War. At a minimum, it marked the lessening of tensions that were the hallmark of that era and signaled a major turning point in East-West relations. During the summit, President Bush expressed his support for Gorbachev's "perestroika" initiative and other reforms in the Communist bloc.