U.S. Marine Corps Gen. Joseph Dunford, chairman of the Joint Chiefs of Staff, sits in a UH-1N Iroquois at Minot Air Force Base, N.D., Nov. 2, 2016. During his visit, Dunford flew with the 54th Helicopter Squadron to a 91st Missile Wing launch facility and missile alert facility. (U.S. Air Force photo/Airman 1st Class J.T. Armstrong)