System Delta 84 (SYD 84) is a unit of the United States Space Force (USSF) that was activated at Los Angeles Air Force Base on July 10, 2025 as a part of USSF Space Systems Command. Col. Stevie Medeiros assumed command of the unit as its first leader.[1] The unit is responsible for Space-Based Missile Warning and Tracking, including threats such as hypersonic weapons and will be linked to its partner delta SpOC Mission Delta 4.[2] The Delta is the first system delta of the USSF.[3][4] SYD 84 is part of the USSF's new structure to consolidate acquisition and support SpOC Mission Deltas.[5]
| System Delta 84 | |
|---|---|
 | |
| Active | July 10, 2025 - present |
| Country | United States |
| Branch | Space Force |
| Role | System Delta |
| Garrison/HQ | Los Angeles Air Force Base |
| Commanders | |
| Current commander | Col Stevie Medeiros |
| Insignia | |
| SYD 84 GUIDON |  |
References
edit- ↑ "Space Systems Command Activates New Units to Deliver Space Sensing Capabilities". www.meritalk.com. Retrieved 2025-09-17.
- ↑ "USSF Space Systems Command stands up two new System Deltas". United States Space Force. Archived from the original on 2025-09-07. Retrieved 2025-09-17.
- ↑ Cohen, Rachel (2025-08-21). "Space Force Ups Aggressive Expansion of New Acquisition Units". Air & Space Forces Magazine. Retrieved 2025-08-27.
- ↑ Hitchens, Theresa (2025-09-19). "SSC to finish 'system delta' reorg next month". Breaking Defense. Retrieved 2025-09-20.
- ↑ "Space Systems Command Activates New Systems Delta, More to Come". meritalk.com. Retrieved 2025-08-27.