Station commanding officer, Col. Mark Werth, along with Headquarters and Headquarters and Headquarters Squadron martial arts instructor, Sgt. Nicholas Gillmore, pin new rank on Sgt. Samuel Powers Aug. 4, 2009, at the Marine Corps Air Station in Yuma, Ariz. Powers, who left to Japan the very next day, won a Marine Corps Installations West meritorious sergeant board in June. - Station commanding officer, Col. Mark Werth, along with Headquarters and Headquarters and Headquarters Squadron martial arts instructor, Sgt. Nicholas Gillmore, pin new rank on Sgt. Samuel Powers Aug. 4, 2009, at the Marine Corps Air Station in Yuma, Ariz. Powers, who left to Japan the very next day, won a Marine Corps Installations West meritorious sergeant board in June.