1. The Cold War

2. Espionage in Canada: Gouzenko Affair Gouzenko was assigned to the Soviet Embassy in Ottawa in 1943. He discovered that there was an espionage network in Canada and other Western nations. The biggest task was to steal secrets of the atomic bomb.

3. Espionage in Canada: Gouzenko Affair Gouzenko decided to defect to Canada when he learned in 1945 that he and his family were about to be sent back to Russia. Considered as a “trigger” event of the Cold War.

4. 1945: August - United States Drops Atomic Bomb United States ends WWII by dropping two nuclear bombs on Hiroshima and Nagasaki. The United States created the nuclear age, with the everlasting fear of the atomic bomb.