In November 1942, Paul Andrew Kennedy (1912--1993) boarded the St. Elena in New York Harbor and sailed for Casablanca as part of Operation Torch, the massive Allied invasion of North Africa. As a member of the US Army's 2nd Auxiliary Surgical Group, he spent the next thirty-four months working in North Africa, Italy, France, and Germany, in close proximity to the front lines and often under air or artillery bombardment. He was uncomfortable, struck by the sorrows of war, and homesick for his wife, for whom he kept detailed diaries to ease his unrelenting loneliness.

In...