President Trump on Friday night authorized the military to take control of a strip of public land along the southern border. The president justified the use of the military by saying the United States is "under attack from a variety of threats.

President Donald Trump sent a memorandum to four federal department heads Friday night instructing them to allow the military to use and take jurisdiction of federal land along the US-Mexico border.

The Roosevelt Reservation — a strip of federally controlled land along the U.S.-Mexico border— will be among the areas used for military operations.