By the spring of 1945, everyone in the world became aware that the Nazi Germany lost the WWI and after the war the US and the Soviet Union would become the two superpower of the world, which were not exactly friendly to each other. Soon it was decided that Stalin, in exchange for throwing the German army into Berlin and winning the war for the Allies, demanded a ruling over Eastern Europe. All this together had many Churchill who hated the Communists and did not trust Stalin. After it turned out that the Russians stayed there and the Americans were watching the Pacific War, the British Prime Minister issued a command to the General Staff to devise a military plan to attack the Soviets before Stalin could think of extending European influence. The generals regarded the idea as crazy, but the war plan was completed, called Operation Unthinkable.
The date of the attack was determined by Churchill on July 1, 1945, that is, less than two months after the Germans had given up World War II, the third had already begun. The plan was rather reckless: in the Dresden area, the Russians would have sold them to the United Kingdom, with the Poles and 100,000 armed German prisoners. Their only chance would have been the surprise force, the Soviets being oppressive in the dominant position: 264 were stationed in Eastern Europe against the Alliance’s 103 divisions, 363 of them armored, and 6,500 fighters and 2400 bombers at the Air Force Against the Soviets’ 9300 and 3400 machines.
Yes, but Churchill had a secret adus: the atomic bomb of the Americans, which was a seven-pound secret, but he actually knew about him and Stalin as well. According to Alan Brooke, British chief of staff, Churchill argued in a debate on the Peace Conference in Potsdam that “… we can tell the Russians that if they are really jumping, we simply wipe Moscow out of the map, then Stalingrad, then Kiev and then Sevastopol.” Truman’s American president, however, had no reason to embark on the crazy plan, and to complicate with the Soviets, while Japan did not even give up. In addition, they had a total of three bombs: the Trinity test explosion, Hiroshima and Nagasaki – and the next would have only been in the late 45s (which was otherwise intended for Tokyo if the Japanese Emperor did not capitulate).
Meanwhile, the British conservative party lost the 1945 election, and Churchill, fearing the Soviet invasion, handed the Prime Minister to Clement Attlee. Files of the Unthinkable Operation were encrypted and only their content was released in 1998. With Stalin’s extensive spy network, however, he became aware of the British plan, according to historians, this has contributed greatly to the emergence of the Cold War and the mutual paranoia between the Western powers and the Soviets.