This subseries describes and analyzes the military management of a vast complex of activities which during World War II fell generally into the field of logistics. In March 1942, in order to free General Marshall and the General Staff of a mass of administrative burdens, operational responsibility for the continental United States was delegated to three major commands: the Army Ground Forces (Lt. Gen. Lesley J. McNair), the Army Air Forces (Lt. Gen. Henry H. Arnold), and the Army Service Forces-at first the Services of Supply (Lt. Gen. Brehon B. Somervell). The present volume is a study of the third of these great commands, written by an author trained in political science and public administration, who was an adviser to General Somervell.