The 527th Space Aggressor Squadron is a United States Space Force unit assigned to the Space Training and Readiness Command. The unit traces its lineage to the 312th Bombardment Squadron (Light) constituted in 1942. It presents realistic adversary threats to US and allied military forces to improve their training for space-associated operations. It is stationed at Schriever Space Force Base, Colorado. Its present form dates from its activation as part of the United States Air Force in 2000. That year it was activated as part of the Space Warfare Centre, but it was then transferred to the 57th Adversary Tactics Group in 2006. With the formation of the Space Force in 2019, the squadron was part of the second wave of transfers and reorganizations which took place in mid-2020.
The 595th Command and Control Group is an active unit of the United States Air Force. It is organized under Air Force Global Strike Command (AFGSC), and its operations are centered at Offutt Air Force Base, Nebraska. It was activated in a ceremony held on 6 October 2016.
Space Launch Delta 30 is a United States Space Force space launch delta assigned to Space Systems Command and headquartered at Vandenberg Space Force Base, California. The Space Launch Delta 30 is responsible for all space launch operations from the west coast, which includes all polar launches. It manages the Western Range and launch activities for the Space Force, Department of Defense, NASA, and other private space corporations. The Space Launch Delta 30 also supports test and evaluation launches of the U.S. Air Force's intercontinental ballistic missile force.
The 625th Strategic Operations Squadron (STOS) is a United States Air Force nuclear missile control & support squadron. The 625th STOS has five flights that play different roles in this mission. The Latin motto of the 625th STOS is Si vis pacem para bellum, which means, "If you wish for peace, prepare for war."
The 576th Flight Test Squadron is a United States Air Force unit assigned to Air Force Global Strike Command. The 576th is stationed at Vandenberg Space Force Base, California. The unit was first established in January 1943 as the 576th Bombardment Squadron. After training with Consolidated B-24 Liberators in the United States, the squadron deployed to the European Theater of Operations, where it participated in the strategic bombing campaign against Germany. The squadron was awarded a Distinguished Unit Citation for its actions in an attack on Gotha, Germany in February 1944. Following V-E Day, the squadron returned to the United States and was inactivated. It was again active between September 1947 and November 1949 in the reserve, but does not appear to have been fully manned or equipped with tactical aircraft at this time.
The 3rd Test and Evaluation Squadron is a space test and evaluation unit located at Schriever Space Force Base in Colorado.
The 17th Test and Evaluation Squadron is a United States Space Force test and evaluation unit, located at Schriever Space Force Base, Colorado. The squadron is tasked with testing and evaluating space systems and associated support equipment.
Space Operations Command (SpOC) is the United States Space Force's space operations, cyber operations, and intelligence field command. Headquartered at Peterson Space Force Base, Colorado, it consists of its mission deltas, and garrison commands.
The Space Training and Readiness Delta (Provisional) (STAR Delta (P)) was a United States Space Force unit responsible for the training and education of space professionals, as well as the development of space warfighting doctrine. It was a component of Space Operations Command and was headquartered at Peterson Space Force Base, Colorado.
Space Delta 3 is a United States Space Force unit responsible for presenting operational combat-ready space electromagnetic warfare forces in support of assigned missions. It is headquartered at Peterson Space Force Base.
The United States Space Force is organized by different units: the Space Staff, the field commands, and the space deltas.
Exercise Space Flag is a United States Space Force (USSF) exercise dedicated to providing tactical space units with advanced training in a contested, degraded, and operationally-limited (CDO) environment. The intent of Space Flag is to provide space forces with realistic, threat-based training to enhance their ability to analyze and respond to current and future threats within a broader warfighting context. Space Flag is the USSF's sole large-force employment exercise focused on gaining and maintaining space superiority and was modeled after the U.S. Air Force's Red Flag Exercise.
The National Security Space Institute (NSSI) is a unit in the United States Space Force's Space Training and Readiness Command (STARCOM). Headquartered at Peterson Space Force Base, Colorado, it provides space professional military education to the military space professionals in the United States and its allies.
Space Delta 13 is a United States Space Force unit responsible for space education. It offers advanced and developmental space education courses for the Space Force and its joint and allied partners. It was established on 23 August 2021 following the establishment of the Space Training and Readiness Command, the field command to which it reports. It is temporarily headquartered at Maxwell Air Force Base, Alabama, but its final location requires a base selection process.
Space Delta 1 is a United States Space Force unit responsible for space training. It runs the Space Force's basic military training, weapons school, and other advanced training courses and exercises. It was established on 23 August 2021 following the establishment of the Space Training and Readiness Command, the field command to which it reports. It is headquartered at Vandenberg Space Force Base, California.
Space Delta 12 is a United States Space Force unit responsible for space test and evaluation. It tests space systems and capabilities in support of weapon system acquisition, operational acceptance, and readiness. It was established on 23 August 2021 following the establishment of the Space Training and Readiness Command, the field command to which it reports. It is temporarily headquartered at Schriever Space Force Base, Colorado, but its final location requires a base selection process.
Space Delta 11 is a United States Space Force unit responsible for space range and aggressor. It conducts live and virtual training and operations for test and training requirements. It was established on 23 August 2021 following the establishment of the Space Training and Readiness Command, the field command to which it reports. It is temporarily headquartered at Schriever Space Force Base, Colorado, but its final location requires a base selection process.
Space Delta 10 is a United States Space Force unit responsible for space doctrine and wargaming. It was established on 23 August 2021 following the establishment of the Space Training and Readiness Command, the field command to which it reports. It is temporarily headquartered at the United States Air Force Academy, Colorado, but its final location requires a base selection process.
The 319th Combat Training Squadron is a United States Space Force unit responsible for offering advanced military space training. Assigned to Space Training and Readiness Command's Space Delta 1, it offers space warfighting follow-on courses for the four warfighting disciplines in the Space Force: orbital warfare, space electronic warfare, space battle management, and space access and sustainment. Space operators that recently graduated from the 533rd Training Squadron's undergraduate space training undergo a temporary duty assignment at the squadron to train them based on their specific warfighting discipline. It is located at the Moorman Space Education and Training Center, Peterson Space Force Base, Colorado.
This is a list of all commanders of Space Training and Readiness Command and all its historical antecedents, organizations that took its lineage.
United States
United States Space Force 
Maj Gen Timothy Sejba 
