U.S.–British Staff Conference (ABC–1)
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The U.S.–British Staff Conference was a series of secret discussions between United States and British military staff members on American, British, and Canadian (ABC) military coordination in the event of U.S. entry into World War II. The conference took place in Washington, D.C. from January 29 to March 27, 1941 and concluded with a report entitled "ABC-1" which was tacitly approved by President Franklin D. Roosevelt two days later.[1]