US Army Garrison 4006, Ft. Sam Houston, Texas

**US Army Garrison 4006, Fort Sam Houston, Texas,** traces its roots to the long-standing military presence at Fort Sam Houston, established in 1876. As a modern garrison unit, 4006 provides critical base operations support, ensuring the readiness and well-being of tenant units, service members, and their families. The garrison has played a key role in supporting the installation’s primary missions, including medical training, force readiness, and joint operations. Over the decades, US Army Garrison 4006 has adapted to evolving Army requirements, remaining a cornerstone of the Army’s support infrastructure in the San Antonio region.