The Space Training and Readiness Delta (Provisional) is a component of U.S. Space Force, headquartered at Peterson Air Force Base, Colorado. The organization was established and activated July 24, 2020.

STAR DELTA (P) consists of 12 units located at Schriever AFB, Colorado, Peterson AFB, Colorado, Nellis AFB, Nevada and Vandenberg AFB, California. 

STAR Delta (P) (opens in new window) 
3rd Space Experimentation Squadron (opens in new window) 
17th Test Squadron (opens in new window)
25th Space Range Squadron (opens in new window)
319th Combat Training Squadron
328th Weapons Squadron
527th Space Aggressor Squadron
533rd Training Squadron
U.S. Air Force Warfare Center Detachment 1
705th Combat Training Squadron Operating Location Alpha
Air Force Operational Test & Evaluation Center Detachment 4
National Security Space Institute
Vosler Noncommissioned Officer Academy

Spacepower - Doctrine for Space Forces