William Lee Shelton is a former United States Air Force four-star general who last served as the commander of Air Force Space Command from January 5, 2011, to August 15, 2014. He had been the Assistant Vice Chief of Staff of the United States Air Force and Air Staff Director. He had served as chief of warfighting integration and chief information officer, Office of the Secretary of the Air Force. Shelton held numerous positions of leadership throughout the United States Air Force. He retired from the Air Force on September 1, 2014.

The 2nd Space Operations Squadron is a United States Space Force unit responsible for operating the Global Positioning System (GPS) satellite constellation, which provides global navigation, time transfer, and nuclear detonation detection. It is a component of Space Operations Command's Positioning, Navigation, and Timing Integrated Mission Delta (Provisional) and headquartered at Schriever Space Force Base, Colorado.