Fort Sam Houston, located in the heart of San Antonio, has been the home of many military accomplishments.  It is the birth place of military aviation, was the largest Army post in the continental United States from 1910 until World War II, and now is home to the largest military medical training facility in the world.  On October 1, 2010, Fort Sam Houston became a part of Joint Base San Antonio (JBSA), the largest single DoD enterprise.  With its creation, the Army Support Activity (ASA) was also formed to uphold those functions that are Army in nature.

With the stand-up of Joint Bases, some Installation Support Services were retained by the Army.  The JBSA ASA, an IMCOM organization, was established to deliver these non-Joint Base services to include:

Oversight & Liason for Residential Communities Initiative (RCI) (Privatized Housing) 
Casualty Operations 
Survivor Outreach Services (SOS) 
Army Emergency Response (AER) 
Range Operations and Training Support 
Army Continuing Educations System (ACES) 
Sexual Assault & Prevention Program
Directorate of Plans, Training, Mobilization, and Security

Following are accomplishments of ASA since 2010:

Directorate of Plans, Training, Mobilization and Security (DPTMS)

Range Operations and Training Support

Army Continuing Education System

Oversight & Liaison for Residential Communities Initiative (RCI) (Privatized Housing)

Mission Training Complex (MTC)

Training Support Center

Security Office

Sexual Harassment Assault Response Prevention

Survivor Outreach Services 

Office of the Staff Judge Advocate

Resource Management Office

Casualty Assistance Center