1939-1941: The first few years of WWII saw the United States gradually edge toward war. Following President Franklin Roosevelt's prompting, the US first restricted supply sales to a cash-and-carry policy that prohibited loans and US ships carrying supplies before instituting the lend-lease act that allowed much broader aid to warring nations. Despite official neutrality, US businesses aided the allies far more than they did the axis. (jan 1, 1939 – jan 1, 1941)