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The Berlin Blockade was an attempt in 1948 by the Soviet Union to limit the ability of France, Great Britain and the United States to travel to their sectors of Berlin, which lay within Russian-occupied East Germany. Eventually, the western powers instituted an airlift that lasted nearly a year and delivered much-needed supplies and relief to West Berlin. Coming just three years after the end of World War II, the blockade was the first major clash of the Cold War and foreshadowed future conflict over the city of Berlin
What dose blockade mean in the cold war?