Using the source below, explain how Stalin dealt with the Berlin Airlift during the Cold War

In Source A, we are able to depict Stalin as being very angry when facing the Berlin Airlift that took place between June 1948 to May 1949. Stalin himself had created the Berlin Blockade in June 1948, in order to prevent raw materials getting into West Berlin. Stalin believed by blocking entry, that West Berlinners would get angrier towards the Americans, allowing him to seize control and therefore manifest his power. However, as shown by the source, the USA was able to outsmart Stalin by flying raw materials into West Germany by using airforce. By January 1949, the USA was able to fly in 6000 tons of raw materials everyday.Source A shows Stalin looking frustrated with the Berlin Airlift, as West Berlin was prospering when he wanted the opposite. It was gaining so much strength in fact, that East Berlin were getting frustrated with Stalin, hence his anger. Therefore, in June 1969, Stalin called off the Berlin Blockade, as it was causing more damage to himself than the USA and West Berlin.