WASHINGTON (AP) — A long sliver of federal land along the U.S.-Mexico border that President Donald Trump is turning over to the Department of Defense would be controlled by the Army as part of a base, which could allow troops to detain any trespassers, including migrants, U.S. officials told The Associated Press.

The order would empower troops to detain people attempting to illegally enter the U.S. within the stretch of land, which was established by President Theodore Roosevelt for border security in 1907. Trump authorized the military to operate in the same area during his first administration to aid construction of a wall to deter migrant crossings.

A 60-foot strip along the land border will be handed over to the Pentagon, running from the Pacific Ocean to the Rio Grande.