1. Isolationism and Pearl Harbor
USHC Analyze the decision of the United States to enter World War II, including the nation’s movement from a policy of isolationism to international involvement and the Japanese attack on Pearl Harbor Kevin Latham

2. Isolationism
The U.S. adopted a policy of isolationism in order to stay out of foreign affairs after WW1
Wanted to avoid another European war
Growing tensions in Europe and Asia led to a transition to involvement in foreign affairs

3. Pre-Pearl Harbor 1937, Japan invades China
This was known as the Sino-Japanese War
Brutality was a main tactic used to conquer China
Many Americans opposed

4. Pre-Pearl Harbor
Japanese invasion of China led to oil supply cut off by the U.S.
Without oil, Japan could not operate
Japan decides to attack U.S. naval base named Pearl Harbor in Honolulu, Hawaii
December 7th, 1941

5. Following Pearl Harbor
The following day, U.S. declares war on Japan
In turn, Germany declares war on U.S.
The U.S. enters WW2