The major ground component of the active Marine Corps Reserve is the 4th Marine Division, Fleet Marine Force. The combat record of this division in World War II was exemplary; in the short space of one year it participated in four major amphibious assaults and won two presidential citations. The interest in its battle record among the reservists who now serve in its ranks has prompted the republication of this brief history, originally published in August 1945 and reprinted in 1974. This new reprint contains a brief history of the reserve 4th Division, written by Colonel Joseph B. Ruth, USMCR, a former member of the 25th Marines. Also included are copies of the division's lineage and honors, a list of its commanders, and a list of its units and their locations.