The Road To Pearl Harbor, 1919-1941 Season 1 Episode 14 FDR and Churchill: The Human Partnership:

The close personal friendship between Roosevelt and Churchill had a profound effect on the history of the Western world. Roosevelt posted "lend-lease"as the most practical means of allowing the U.S. to remain neutral while arming Britain and its allies. Due to the political wiles of the of the two leaders, the bill was passed against bitter opposition and British morale received an enormous lift.