Paul O’Dacre and his dog, Killian, pose for a photo outside Recruiting Substation Wilmington in North Carolina, February 16, 2018, where his Marine Corps recruiters mentally and physically prepare him and other applicants for the challenges of Marine Corps Recruit Training. He has been playing for the euphonium for the last eight years. (U.S. Marine Corps Photo by Sgt Antonio J. Rubio/Released) - Paul O’Dacre and his dog, Killian, pose for a photo outside Recruiting Substation Wilmington in North Carolina, February 16, 2018, where his Marine Corps recruiters mentally and physically prepare him and other applicants for the challenges of Marine Corps Recruit Training. He has been playing for the euphonium for the last eight years. (U.S. Marine Corps Photo by Sgt Antonio J. Rubio/Released)