Wars may be examined on many levels. On the grandest scale one can see them as the movements of masses of troops across a map with arrows and denotations of decisive battles. With a finer lens one can attempt to comprehend wars from the statements of national leaders or the strategic feints, thrusts, and parries of generals who order individual units across the battlefield. As valuable as these frames are in seeking to understand the reality of war, it is only by adding the perspectives of the individual soldiers that one can try to complete a thorough portrait of human conflict. That most...