U.S. Navy Chief Petty Officer Jennifer McKenna, a newly appointed Chief Petty Officer with 2d Battalion, 2d Marine Regiment, 2d Marine Division, and a Clio, Michigan native, is pinned by her family members during a Chief Petty Officer pinning ceremony on Marine Corps Base Camp Lejeune, North Carolina, Sept. 27, 2024. Established by the Navy in 1893, the distinction for Chief Petty Officer was marked by changes in uniform and authority, with Chief Selects completing a six-week initiation that included physical fitness, team-building, and leadership training. (U.S. Marine Corps photo by Cpl. Alexis Sanchez) - U.S. Navy Chief Petty Officer Jennifer McKenna, a newly appointed Chief Petty Officer with 2d Battalion, 2d Marine Regiment, 2d Marine Division, and a Clio, Michigan native, is pinned by her family members during a Chief Petty Officer pinning ceremony on Marine Corps Base Camp Lejeune, North Carolina, Sept. 27, 2024. Established by the Navy in 1893, the distinction for Chief Petty Officer was marked by changes in uniform and authority, with Chief Selects completing a six-week initiation that included physical fitness, team-building, and leadership training. (U.S. Marine Corps photo by Cpl. Alexis Sanchez)