During World War II the photographers of the United States armed forces created on film a pictorial record of immeasurable value. Thousands of pictures are preserved in the photographic libraries of the armed services but are little seen by the public. In the narrative volumes of UNITED STATES ARMY IN WORLD WAR II, now being prepared by the Office of the Chief of Military History of the United States Army, it is possible to include only a limited number of pictures. Therefore, a subseries of pictorial volumes, of which this is the last, has been planned to supplement the other volumes of the series. The photographs have been especially selected to show important terrain features, types of equipment and weapons, living and weather conditions, military operations, and matters of human interest. These volumes will preserve and make accessible for future reference some of the best pictures of World War II. An appreciation not only of the terrain upon which actions were fought, but also of its influence on the capabilities and limitations of weapons in the hands of both our troops and those of the enemy, can be gained through a careful study of the pictures herein presented. These factors are essential to a clear understanding of military history. The book deals with the Pacific Theater of Operations and is divided into six sections: (1) The Allied Defensive; (2) The Strategic Defensive and Tactical Offensive; (3) The Offensive-1944; (4) The Final Phase; (5) The China-Burma-India Theater; and (6) The Collapse of Japan and the End of the War in the Pacific.