Interwar (1 sept 1918 año – 1 mayo 1941 año)

Descripción:

After WW1: isolationism
- Warren Harding "return to normalcy"
- high tarrifs
- Kellog-brand pact: weak statement that war is illegal

->WW2->Interventionism:
- submarines and airplanes connected US to conflict
- Roosevelt gradually gave aid "cash and carry"
- Destroyers for Bases
- Land Lease Act
- Pearl Harbor

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