On September 6, 1943, Michigan's Republican United States Senator, Arthur H. Vandenberg,
chaired the meeting of the Post War Advisory Council. Republican National Committee Chairman, Harrison Spangler, created the council to draw up a foreign policy plank for the 1944 party platform. Fearing a split between isolationists and internationalists, Spangler wanted a unified policy statement on treaty ratification and the proposed world peace organization. The resulting plank cleared the way for Republican congressional support of the United Nations and ultimately the North Atlantic Treaty Organization. Among those attending the public sessions were Governors Warren of California, Dewey
of New York, Kelly of Michigan, Green of Illinois, and Senator Robert A. Taft of Ohio.