Cmdr. La Tanya Simms is relieved by Cmdr. Jeff Kilian as commanding officer of Naval Mobile Construction Battalion 4 during a change of command ceremony at Naval Base Ventura County.

PORT HUENEME, Calif. (Jun. 14, 2012) Cmdr. La Tanya Simms is relieved by Cmdr. Jeff Kilian as commanding officer of Naval Mobile Construction Battalion (NMCB) 4 during a change of command ceremony at Naval Base Ventura County. NMCB-4 is a component of the Navy Expeditionary Combat Command that provides contingency engineering and construction around the world. (U.S. Navy photo by Construction Mechanic 2nd Class Daniel Wyman) File# 120614-N-ZZ123-254