The document discusses life in post-war Berlin and key events surrounding its division and isolation by the Soviet Union. After World War 2, Berlin was divided into western and eastern sectors, with the west controlled by the US, UK, and France and adopting capitalism while the east was controlled by the Soviet Union and became communist. The Soviets blockaded the western sectors in 1948, isolating the city. In response, the US and allies launched an unprecedented airlift to supply the western sectors from 1948 to 1949. After 11 months, over 2 million tons of supplies had been delivered, demonstrating the strength of the allied powers. The Soviets eventually lifted the blockade as it became clear the airlift could not be stopped.