Army Command Sgt. Maj. John W. Troxell, left, senior enlisted advisor to the chairman of the Joint Chiefs of Staff, speaks with Marine Corps Sgt. Maj. Paul McKenna, senior enlisted advisor for U.S. Marine Corps Forces, Pacific , before an early morning physical training session with sailors and Marines at Camp H.M. Smith, Hawaii, Feb. 10, 2016. Troxell worked out with the troops for an hour and then held a brief question and answer session. DoD photo by Navy Petty Officer 2nd Class Dominique A. Pineiro