| System Delta 81 | |
|---|---|
 Detta has no insignia emblem as of September 2025 | |
| Active | September 9, 2025 - present |
| Country | United States |
| Branch | Space Force |
| Type | Delta |
| Garrison/HQ | Petersen Space Force Base |
| Commanders | |
| Current commander | Col. Corey Klopstein |
System Delta 81 (SYD 81) is a unit of the United States Space Force (USSF) that was activated at Peterson Space Force Base on September 9, 2025. [1] The unit supports Space Training and Readiness Command (STARCOM) by developing High-End Advance Test, Training and Tactics (HEAT3), training and live testing including war games and exercises. Col. Corey Klopstein assumed command of the unit as its first leader. [2] The Delta is stationed at Peterson Space Force Base in Colorado Springs, Colorado and is a subordinate to the Space Systems Command. It is the sixth system delta of the USSF. [3] SYD 81 is part of the USSF's new structure to consolidate acquisition and support SpOC Mission Deltas. [4]