method which... will be the most satisfactory and lasting. There will be no mixture of populations to cause endless trouble.... A clean sweep will be made." Postwar plans The U.S. and Britain each approached Moscow in its own way; there was little coordination. Churchill wanted specific, pragmatic deals, typified by the percentage arrangement. Roosevelt's highest priority was to have the Soviets eagerly and energetically participate in the new United Nations, and he also wanted them to enter the war against Japan. In October 1944, Churchill and foreign minister Anthony Eden met Stalin and his foreign minister Vyacheslav Molotov in Moscow. They discussed who would control what in the rest of postwar Eastern Europe. The Americans were not present, were not given shares, and were not fully informed. After lengthy bargaining the two sides settled on a long-term plan for the division of the region, The plan was to give 90% of the influence in Greece to Britain and 90% in Romania to Russia. Russia gained an 80%/20% division in Bulgaria and Hungary. There was a 50/50 division in Yugoslavia.Klaus Larres, A companion to Europe since 1945 (2009) p. 9 Cold War and beyond Following the end of the Second World War, relations between the Soviet and the Western Bloc deteriorated quickly. Former British Prime Minister Churchill claimed that the Soviet occupation of Eastern Europe after World War II amounted to 'an iron curtain has descended across the continent.' Relations were generally tense during the ensuing Cold War, typified by spying and other covert activities. The British and American Venona Project was established in 1942 for cryptanalysis of messages sent by Soviet intelligence. Soviet spies were later discovered in Britain, such as Kim Philby and the Cambridge Five spy ring, which was operating in England until 1963. The Soviet spy agency, the KGB, was suspected of the murder of Georgi Markov in London in 1978. A High ranking KGB official, Oleg Gordievsky, defected to London in 1985. British prime minister Margaret Thatcher pursued a strong anti-communist policy in concert with Ronald Reagan during the 1980s, in contrast with the détente policy of the 1970s. During the Soviet–Afghan War the British conducted covert military support as well as sending arms and supplies to the Afghan Mujahideen. Relations improved considerably after Mikhail Gorbachev came to power in the Soviet Union in 1985 and launched perestroika. They remained relatively warm after the collapse of