190913-N-QL741-1139 SANTA RITA, Guam (Sept. 13, 2019) Chief Engineman Derick Hernandez, assigned to Naval Expeditionary Forces Command Pacific (NEFCPAC), gets pinned by his spouse and kids during a chief pinning ceremony at the Big Screen Theater onboard Naval Base Guam, Sept. 13. The CPO pinning ceremony was the culmination of an intense six-week training period where senior leaders introduced the CPO selectees to a set of challenges that were designed to strengthen their leadership and mentoring abilities. (U.S. Navy photo by Mass Communication Specialist 1st Class Billy Ho/Released)