Dead Union ( Deadwater series: Book 6)

Henry Watson and his warrior survivalists are conscripted by a mad colonel, one of the last military leaders still functioning in the decimated United States. The colonel has settled in Fort Knox, and from there plans to rule the world with his slave army of lost souls and the last remaining soldiers of a defunct army. But first he must take back America and mold it in his own image; and he will crush all who oppose him, including the new recruits of Henry and crew. The battle lines are drawn with the fate of America at stake, and this time, the outcome may be unsure. In a world where the dead walk, even the grave isn't safe.