The new military zone is located in Cameron and Hidalgo Counties in Texas and will be transferred from land overseen by the International Boundary and Water Commission, an entity that settles treaty issues between the U.

Military personnel will patrol and stop trespassers along the stretch of land, which spans 250 miles of the Rio Grande River in Texas.

The Pentagon is establishing a fourth military defense zone along the U.S.-Mexico border, where American soldiers can apprehend noncitizens on charges of trespassing, Chief Pentagon spokesman Sean Parnell said Wednesday.