This document summarizes key events and developments in global politics during the early Cold War period from 1949-1953. It discusses the Soviet Union's acquisition of nuclear weapons and the American response of increasing defense spending. It also describes efforts to establish a unified European military force through the proposed European Defense Community, as well as early economic integration through the European Coal and Steel Community. Finally, it notes that the first phase of the Cold War came to an end with the departures of Joseph Stalin and Harry Truman from power in 1953, leaving uncertainty about whether East-West relations might thaw under new leadership on both sides.