Book excerpt: Includes more than 40 maps, plans and illustrations. This volume in the official History of the Marine Corps chronicles the part played by United States Marines during the Korean War from Bunker Hill to the Hook. The origin of this work lies in the continuing program to keep Marines, who are the key to the success of Marine Corps operations, informed of the ways of combat and civic action in Vietnam. The project provides a timely series of short, factual narratives of small unit action, stories which would have lessons learned as an integral part. It’s 1952. Marines have been fighting in Korea for just over 2 years. The daring execution of the Inchon Landing, if not forgotten, might as well have been. For instead of conducting amphibious assaults and moving rapidly though North Korean forces, the Marines of the 1st Marine Division are fighting along a main line of resistance (MLR)-outpost warfare-static warfare that consisted of slugfests between artillery and mortars, but always the infantryman moving in small groups attacking and reattacking the same ground.