Joint Base San Antonio
US military joint service installation near San Antonio, Texas, United States
Joint Base San Antonio (JBSA) is a United States military facility located in San Antonio, Texas, US. The facility is under the jurisdiction of the United States Air Force 502d Air Base Wing, Air Education and Training Command (AETC). The wing's three Mission Support Groups perform the installation support mission at the three bases that form JBSA.
The facility is a joint base of the United States Army Fort Sam Houston, the United States Air Force Randolph Air Force Base and Lackland Air Force Base, which were merged on 1 October 2010.
Overview
JBSA was established in accordance with congressional legislation implementing the recommendations of the 2005 Base Realignment and Closure Commission. The legislation ordered the consolidation of the three facilities which were nearby, but separate military installations, into a single joint base, one of 12 formed in the United States as a result of the law.
Joint Base San Antonio supports a population of 80,000 and supports students at three installations annually of up to 138,000. Upon becoming the largest single DoD installation/enterprise, it has a total Plant Replacement Value of about $10.3 billion, lead a work force of over 8,000 personnel, manages an annual budget of $800 million, interface with 1,000 civic leaders of San Antonio, 20 smaller communities, four counties and four Congressional Districts, support more than 266 mission partners, supported and supporting units, and finally, support more than 250,000 other personnel including 425 retired general officers (2nd largest concentration in U.S.).
Tenant Bases
Fort Sam Houston (US Army)
Randolph Air Force Base (US Air Force)
Lackland Air Force Base (including Kelly Field and Chapman Training Annex) (US Air Force)
Camp Bullis (US Army)
Seguin Auxiliary Air Field (US Air Force)
Related Military Reservations
Camp Stanley (US Army)
Fort Sam Houston
The primary mission at Fort Sam Houston is as a medical training and support post. The post is the home of Army North, Army South, Army 5th Recruiting Brigade, Brooke Army Medical Center, the Institute of Surgical Research, US Army Medical Center of Excellence, the Army Medical Command and the 502d Air Base Wing.
Fort Sam Houston provides facilities to and support for the activities of garrison units and other tenant organizations. The post also supports the thousands of Army Reserve and National Guard soldiers who train there year-round.
This brief starts where responsible research should: with the source description of “Joint Base San Antonio” as uS military joint service installation near San Antonio, Texas, United States. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as uS military joint service installation near San Antonio, Texas, United States. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 4, 2026. The linked authority identifier is Q6269109. Authority coordinates are 29.449, -98.449. 3 of 3 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 2010 and 2005.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Joint Base San Antonio”, its source revision and the description used here.
- Expand the search: follow Joint Base San Antonio primary sources, Joint Base San Antonio archive and Joint research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Joint Base San Antonio”?
- Which cited source is closest to the event, object or claim?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “Joint Base San Antonio” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.