21st CES

The 21st Civil Engineer Squadron (21st CES) is a unit within the United States Air Force, assigned to the 21st Mission Support Group at Peterson Space Force Base, Colorado. The squadron traces its heritage to early Cold War-era engineer units, with its current incarnation supporting the 21st Space Wing’s infrastructure and emergency response needs. Throughout its history, the 21st CES has been responsible for base facility maintenance, construction, disaster preparedness, and environmental stewardship, ensuring operational readiness for space and missile defense missions. Its engineers have also deployed overseas to support contingency operations and humanitarian efforts, demonstrating versatility and excellence in both peacetime and conflict.