The Panama Canal Division was a unit of the United States Army, established in order to insure the United States could adequately defend the Canal Zone in Panama. When it was authorized in 1920, similar divisions were organized to defend Hawaii and the Philippines. The division was organized in 1921, and active until 1932.
Later, however, the commander of the Panama Canal Department, Major General Preston Brown, determined that the defense of Panama would be better served by command groups representing the Atlantic and the Pacific. In 1932, the Army inactivated the division, keeping its Tables of Organization on file should the need arise to reactivate it. It never has.