Answer: Commander Jo Galloway works for the division of Defense Service Offices on the navy JAG corps.
Step-by-step explanation: The story begins with the investigation of the passing of a marine on the U.S. As the events occur, two other marine officers are involved in the case, and Jo Galloway, along with Daniel Kaffee and Sam Weinberg, has the mission of defending the two suspects. The division of Defense Service Offices' job is, as the name suggests, to provide legal advice and representation to service members.