This was a program of the u. s. government during wwii which provided allies with war material while keeping the u. s. from actively engaging in combat.

I believe the answer you are looking for is the "Lend-lease" act. This is where we would send military supplies such as tanks, guns, ships, ammunition over to allied countries such as France and Britain. The lend lease program did not allow sending men to foreign countries to assist in their war.