Final answer:
The United States committed seventy percent of its resources to the war in Europe to defeat Nazi Germany and support its European allies.
Step-by-step explanation:
When the United States entered World War II, it committed seventy percent of its resources to the war in Europe primarily because it saw defeating Nazi Germany as a crucial objective. The United States recognized that Germany posed a significant threat to Western Europe and believed that defeating them would lead to a faster and more favorable outcome in the war. Additionally, the United States felt a sense of solidarity with its European allies and wanted to assist them in their fight against Nazi aggression.
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