Chain of CommandBook - 2017
Lieutenant Sam Bitka, U.S. Naval Reserve, is just getting used to civilian life when he is called back to active duty. Tensions between Earth and the alien Varoki are on the rise and he is assigned as tactical officer aboard the deep space destroyer USS Puebla. But when the Varoki launch a crippling surprise attack against the Earth coalition fleet, Sam finds himself suddenly in command of the USS Puebla. Now he must deal with faltering leadership in the human task force and an alien enemy who always seems one step ahead of them.
Publisher: Riverdale, NY : Baen, 
Characteristics: 373 pages ; 24 cm