Richard O'Neill has specialized in military history for the past 40 years as a writer and editor. Suicide Squads, a history of the weapons and missions of World War II's Special Assault troops, is his first book. Several works on armament and military history, including The Complete Encyclopedia of 20th Century Warships, The Vietnam War, and, most recently, An Illustrated History of the Royal Navy, have featured his contributions. He was a major contributor to the multi-volume educational book Lands And Peoples, as well as the author of Presidents of the United States for the Facts America series. He's also the author of the Historical Facts illustrated series' The Middle Ages and World War Two.