Jack Campbell is the pseudonym for John G. Hemry, a retired Naval officer and graduate of the U.S. Naval Academy in Annapolis. As Jack Campbell, he writes The Lost Fleet series of military science fiction novels. He also wrote the Stark's War and JAG in Space series under his real name.
"One hell of a series. A humdinger. The Paul Sinclair series remains at the top of my list of Great SF Books." (SF Reviews)"