- Berlin lay 100 miles within the Soviet occupation zone. Sealed off from rest of Germany since 1946- west Germans in Berlin had to rely on food and energy supplies from the west- between 24th June 1948 and 12th may 1949 USSR blockaded West Berlin - roads, railways and waterways closed. Electricity cut- UK foreign minister, Ernest bevan. Adamant that allies must not use force to access West Berlin but keep it supplied by air- during the blockade, US and UK planes delivered food and coal to 2.2 million west Berliners - ended may 1949