After WWII was over and the world entered The Cold War Berlin was split between Allied East, Soviet west and the surrounding country was also controlled by the Soviets. The Allies where supplying Berlin with needed supplies by a canal, a highway, a railway line and three air corridors. The soviets wanting to takeover east Berlin, closed off the ground access so only the air corridors remained. What happened next between June 24 1948 and May 12 1949 is one of those overlooked periods in history where people came together and achieved the impossible. In this case, to supply east Berlin's 12,000 ton daily requirement of food and fuel, every day by air transport alone.
So that is what Michael D. Haydock's Book City Under Siege is about and you can read an excellent cut-down version of events from start to finish on American Heritage.com. Which I found fascinating, especially since I never heard of this before.
[via Kim Pallister]