The Lend-Lease Act changed the intent of the Neutrality Acts by allowing the US to provide military aid to foreign nations without direct involvement.
The action that changed the intent of the Neutrality Acts passed by Congress in 1935, 1937, and 1939 was the passage of the Lend-Lease Act. The Lend-Lease Act allowed the United States to provide military aid and supplies to foreign nations, including the Allies, without direct involvement in the conflict, thus altering the neutrality stance.
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