1942 would prove crucial for the United States in the Pacific following the Japanese attack on Pearl Harbor and a series of setbacks in the Southwest Pacific late in 1941 into 1942. As the first ship commissioned following America's entry into World War II, the light cruiser USS Atlanta would be thrust into the Pacific fight, joining the fleet in time for the pivotal battle of Midway and on to the Guadalcanal campaign in the Southwest Pacific. Embarked was an exceptionally astute observer - Lieutenant Commander Lloyd M. Mustin - who faithfully recorded his thoughts on the conflict in a standard canvas-covered logbook. Diaries were not supposed to be kept by those serving in the U.S. Navy during World War II and for good reason-if recovered by the Japanese they would likely have revealed that the Japanese code had been broken prior to the battle of Midway. Thus Mustin's diary is a rare day-to-day accounting of the Pacific from a very opinionated mid-grade officer. Beginning with the commissioning of the light cruiser Atlanta at the Brooklyn Navy Yard on Christmas Eve 1941, Mustin covers the ship's workups and her deployment to the Pacific in time for the Battle of Midway. It's then on to the Southwest Pacific where the ship first engages enemy aircraft at the battle of the Eastern Solomons in late August 1942. His final entry covers the battle of Santa Cruz in late October 1942. The story is completed by an account of the battle of Guadalcanal and beyond, drawing upon Mustin's oral history. This is a valuable document, fully interpreted to provide a better understanding of the Pacific War during that critical year. AUTHOR: David F. Winkler is a retired Navy commander having received his commission through Penn State NROTC. Having earned his Ph.D. at American University, he served as staff historian at the Naval Historical Foundation for 25 years, has taught at the U.S. Naval Academy and Naval War College, and held the Charles Lindbergh Chair of Aerospace History at the Smithsonian. He has published five books with the Naval Institute Press and writes a monthly historical perspective column for Sea Power Magazine. At the Naval Historical Foundation he interviewed numerous retired Flag Officers, including Vice Admiral Henry C. Mustin - son of the diary author - with the aim of seeing it published. 30 illustrations