House Concurrent Resolution No. 155 recognizes San Antonio's deep-rooted connection to the military, which has been integral to the city's culture and economy for over three centuries. The resolution highlights the historical significance of military presence in San Antonio, beginning with the establishment of San Antonio de Bxar Presidio in 1718 and the development of Fort Sam Houston in the early 1900s. Today, San Antonio is home to Joint Base San Antonio, the largest base in the U.S. Department of Defense, which plays a crucial role in training and support, employing over 100,000 people and contributing significantly to the state's economy.

The resolution also emphasizes San Antonio's commitment to supporting its military community, which includes a large population of active and retired service members. The city provides extensive resources such as education, job training, and healthcare services, and hosts numerous events to honor military personnel. Additionally, San Antonio has invested over $115 million in military-related infrastructure and has worked with the Texas Legislature to enhance protections for military installations. As a result of these efforts, the resolution officially designates San Antonio as "Military City Texas," a title that reflects the city's longstanding dedication to the armed forces.