The Civil War was trying, bloody, and hard-fought combat for both sides. What was it, then, that sustained soldiers low on supplies and morale? For the Army of Tennessee, it was religion. “Onward Southern Soldiers” explores the significant impact of religion on every rank, from generals to chaplains to common soldiers. Religion unified troops, informing both why and how they fought, and providing the rationale for enduring great hardship for the Confederate cause.