Senior Chief Petty Officer Renee Hellinger removes Chief Petty Officer Crystal Martens’ anchors from her collar prior to Martens’ promotion to chief warrant officer during a ceremony at Coast Guard Sector San Diego on June 30, 2017. Martens was the first female gunner’s mate to be promoted to chief warrant officer in the weapons specialty. (U.S. Coast Guard photo by Petty Officer 3rd Class Joel Guzman/released)