Why do you think the United States went with the lend-lease program and not all out support of the Allies early in World War II?

The United States went with the lend-lease program early in World War II because it allowed the US to provide aid to the Allies without entering the war directly. This allowed the US to remain neutral while still providing support to the Allies, and it also allowed the US to maintain control over the aid it provided. The lend-lease program also allowed the US to avoid the political and economic costs of entering the war directly.