The outbreak of World War II set in motion a massive expansion of the United States Marine Corps, leading to a 24-fold increase in size by August 1945. This book is the first of several volumes to examine the Corps's meteoric wartime expansion and the evolution of its units. It covers the immediate pre-war period, the rush to deploy defense forces in the war's early months, and the Marines' first combat operations on Guadalcanal, New Georgia, and Bougainville. It focuses on the 1st, 2d, and 3d Marine Divisions (MarDivs) and the provisional 1st, 2d, and 3d Marine Brigades (MarBdes).

By January 1944 the US Marine Corps had grown to a total of 405,169 personnel, comprising 28,193 officers, 10,723 officer candidates, and 366,353 enlisted men. The Fleet Marine Force now had two amphibious corps, four divisions, a separate infantry regiment, 19 defense battalions, and numerous support and service units. Following on from Battle Orders 1: USMC in the Pacific Theater of Operations 1941-43, this book examines the continuing development of the Corps's organization, its training, tactics, weaponry, and command structure, as well as the battles fought in the Southwest Pacific on...

The Landing Ship Tank (LST) is one of the most famous of the many World War II amphibious warfare ships. Capable of discharging its cargo directly on to shore and extracting itself, the LST provided the backbone of all Allied landings between 1943 and 1945, notably during the D-Day invasion. Through its history, the LST saw service from late 1942 until late 2002, when the US Navy decommissioned the USS Frederick (LST-1184), the last ship of its type. This book reveals the development and use of the LST, including its excellence beyond its initial design expectations.