U.S. Marines with Marine Aircraft Group 12 perform

U.S. Marines with Marine Aircraft Group 12 perform knee tucks during a physical fitness training session led by force fitness instructors at Marine Corps Air Station Iwakuni, Japan, July 18, 2017. The Marines were joined by their commanding officer and sergeant major, as well as U.S. Marine Corps Brig. Gen. Thomas Weidley, commanding general of 1st Marine Aircraft Wing. Weidley was there to support the new Marine Corps Physical Fitness Program, which has been steadily growing since its implementation in early 2017. (U.S. Marine Corps photo by Lance Cpl. Carlos Jimenez)