The letter "K"
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The Berlin Blockade<span> (24 June 1948 – 12 May 1949) was one of the first major international crises of the </span>Cold War<span>. During the </span>multinational occupation of post–World War II Germany<span>, the </span>Soviet Union<span> blocked the </span>Western Allies<span>' railway, road, and canal access to the sectors of </span>Berlin<span> under Western control. The Soviets offered to drop the blockade if the Western Allies withdrew the newly introduced </span>Deutsche mark<span> from </span>West Berlin<span>.</span>
Answer: The February 1945 Yalta Conference was the second wartime meeting of British Prime Minister Winston Churchill, Soviet Premier Joseph Stalin and U.S. President Franklin D. Roosevelt.
Explanation: The February 1945 Yalta Conference was the second wartime meeting of British Prime Minister Winston Churchill, Soviet Premier Joseph Stalin and U.S. President Franklin D. Roosevelt. During the conference, the three leaders agreed to demand Germany's unconditional surrender and began plans for a post-war world.