The 21st Space Operations Squadron (SOS) is a unit of the United States Air Force (USAF) stationed at Schriever Space Force Base, Colorado Springs, Colorado. Established in 2010, it plays a critical role in space-based missile warning, satellite control, and communication. The squadron supports more than 500 satellite missions for the Department of Defense, NASA, and various commercial entities. Its primary responsibilities include monitoring and maintaining the health and position of these satellites, executing orbital maneuvers, ensuring secure data transmission, and assisting in the development and deployment of new space-based technologies. The 21st SOS contributes significantly to the USAF's efforts in safeguarding national security interests through its work in the rapidly evolving field of space operations.