180615-N-VN584-2291 SAN DIEGO (June 15, 2018) Rear Adm. Steve Koehler, commander of Carrier Strike Group (CSG) 9, gets pinned with a second star by his parents during a change of command ceremony at the I Bar on Naval Air Station North Island. Rear Adm. Daniel Dwyer relieved Koehler as commander of CSG-9. (U.S. Navy photo by Mass Communication Specialist 3rd Class Alex Corona/Released)