President Trump has eyed the facility as a holding center and said it has the capacity to hold as many as 30,000.
The forces are expected to be used to support border patrol agents, with logistics, transportation and construction of barriers.
Trump will issue executive orders to remake immigration policies; legal, logistical questions remain
President Trump will sign a series of executive orders designed to beef up security at the southern border by relying more on the U.S. military.
Texas has continued to install razor wire along its roughly 1,200-mile border with Mexico over the past year.
Vice President Kamala Harris made her first stop to the southern border yesterday, sparking debate between the two major political parties.
The U.S. Border Patrol is expected to arrest migrants about 57,000 times during the month, down from 83,536 arrests in June.
President Joe Biden is planning to announce a sweeping new policy Tuesday that would lift the threat of deportation for tens of thousands of people married to U.S. citizens.
President Joe Biden is preparing to sign off on an executive order that would shut down asylum requests at the U.S.-Mexico border once the average number of daily encounters hits 2,500.