Wars are not simply military affairs. For the Christian, they are theological to the core. Mark Noll has made that clear with the various ways ministers interpreted the Civil War (see The Civil War as a Theological Crisis, University of North Carolina Press).
Last year, James Byrd of Vanderbilt released his Sacred Scripture, Sacred War: the Bible and the American Revolution (Oxford University Press). It received a book of the year award from Christianity Today.
My interview with Professor Byrd of Vanderbilt appeared this past Saturday on JesusCreed: