Texas Gov. Greg Abbott deployed the troops to the Rio Grande Valley, where he said they'll work side-by-side with U.S. Border Patrol agents to keep migrants from illegally entering the country. Some of those troops left from the U.S. Naval Air Station Joint Reserve Base in Fort Worth Monday morning. The others left from a base in Houston.

Texas Air National Guard personnel responded to Gov. Abbott's call to deploy the Texas Tactical Border Force to the Rio Grande Valley.

Texas Gov. Greg Abbott said the additional troops will work alongside federal border agents amid the Trump administration's crackdown on immigrants.

Texas Gov. Greg Abbott (R) is sending hundreds of soldiers in the Texas Military Department to work with the U.S. Border Patrol in the Rio Grande Valley.

Governor Greg Abbott has directed the Texas Division of Emergency Management (TDEM) to deploy additional state resources, including swiftwater rescue boat squads and urban search and rescue teams. Among them is a Fort Worth Fire Rescue squad, which deployed this morning to stage in Abilene and could be moved depending on the evolving situation.

Texas Governor Abbott mobilizes the Tactical Border Force to reinforce security along the Texas-Mexico border in collaboration with federal authorities.

The soldiers departed Monday from Houston and Fort Worth, marking a change from the Republican governor's legal battles with the Biden administration. Abbott spent the last four years testing a state's ability to enforce immigration law — at times at odds with Border Patrol.

The 400 members of a special tactical unit left bases in Houston and Fort Worth on Monday morning, according to the governor’s office.

Texas Gov. Greg Abbott ordered 400 soldiers Monday to the Rio Grande Valley, escalating efforts to secure the state’s border with Mexico as President Donald Trump sends military reinforcements after declaring a state of emergency along the border.

Governor Greg Abbott announced Sunday that Texas Department of Public Safety operations are expected to “expand in coming days” as part of immigration enforcement efforts.

The Texas governor said the additional troops will work alongside federal border agents as part of Trump's efforts to seize the offensive.