An operation to deploy 1,000 Army personnel and 500 Marines to the U.S.-Mexico border is underway, according to senior military officials. The troops will assist with immigration enforcement in El Paso,

The deployment signals the military’s increased role in a much more aggressive immigration policy under the second Trump administration.

U.S. officials say the Pentagon will begin deploying as many as 1,500 active duty troops to help secure the southern border in the coming days