Maj. Gen. Dennis O. Bythewood is Special Assistant to the Chief of Space Operations, the Pentagon, Arlington, Virginia.

Maj. Gen. Bythewood entered the Air Force via the Reserve Officers Training Corps in 1992 upon graduating from the University of Vermont and transferred to the Space Force in 2021. He has commanded space operations at the squadron and group level and as a Joint Task Force commander. He has led acquisitions as a Materiel Leader, two-time System Program Director, and Program Executive Officer.

Prior to his current position, Maj. Gen. Bythewood was the Deputy Commander, U.S. Space Forces – Space, U.S. Command, Vandenberg Space Force Base, California.