Contains numerous maps. One of a series of monographs prepared by the Historical Division that deals with the activities of Marine Corps units in World War II, this monograph is the work of Captain Carleton. While on Okinawa he lived with the men of the Sixth Marine Division, watched them fight and listened to their accounts of the action. He was with the Twenty Ninth Marines on Motobu Peninsula, the Twenty Second Marines during the fight for Naha, and spent considerable time with the Sixth Reconnaissance Company. Most of the material in this monograph is the result of Captain Carleton's personal observations or was gained through his interviews with the officers and men who fought in the Okinawa battles.