Anglo-American Combined Chiefs of Staff established - Jan 14, 1942 - HISTORY.com

On this day, the United States and Great Britain agree to have the British Chiefs of Staff and the U.S. Joint Chiefs work together, either through meetings or representatives, to advise the leaders of both nations on military policy during the war.

During the Arcadia Conference, which began on December 22, 1941, British Prime Minister Winston Churchill met with President Franklin D. Roosevelt in Washington, D.C., to discuss a unified Anglo-American war strategy and a future peace. Toward this end, the Combined Chiefs of Staff was created. The British Chiefs of Staff, composed of the three service heads (army, navy, air force), and their U.S. counterparts, the Joint Chiefs of Staff, were made into one office, with the Combined Staff Planners and the Combined Secretariat offering administrative support.