Ineed to know who? 1. he was the u. s. president who established the lend-lease program to provide arms to the allies, and stated that the united states must be an arsenal of democracy. he aslo asked congress for a declaration of war against japan

The President you are looking for is Franklin Delano Roosevelt. Hope this helps :)

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explanation:

after defeating german forces in north africa allied leaders turned their attention to "italy," since this was the location that made the most geographic sense before invading northern europe via france.