Andrew Carroll (ed.). Colorado Springs, Colo.: WaterBrook Press, 2007. 160 pp. (Hardback). Subtitled “Letters of Faith in Times of War,” this work features previously unpublished letters from American conflicts. In his introduction, Andrew Carroll writes, “At its heart, this book is not about war. It is about courage, devotion, honor, resilience, and faith.” In reality, “Grace Under Fire” is a…