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World War 2.
'Isolationism'
The United States originally pursued a policy of isolationism, avoiding conflict while trying to broker a peace, when World War I broke out. That changed when they learned of the Zimmerman Telegraph.
It was their unwillingness to join the fight and ideals of staying neutral and separate.
After World War I, the US was plunged into the Great Depression. In order to protect its economy and physical security, they had to participate abroad.
Fear of communism
By refusing tho enter we2
World War 2.
Isolationism.
Isolationism.
World War I
World War I
World War I
Declared war on Japan after Pearl Harbor invasion.
'Isolationism'
World War II
Neutrality and Isolationism were the American policies when World War I began. They kept the country out of the fighting, but it did not impede the sale of US goods to nations involved in the war.