Military on Border
Active-duty troops began arriving at the U.S. Mexico border in Arizona last week to support the needs of Customs and Border Protection as part of the Department of Defense's Operation Secure Line. More than 1,000 troops in total were expected to deploy to Arizona. Their duties so far include installing concertina wire on portions of the fence in Nogales. Military officials have said their mission isn't to stop the approaching caravan of migrants from Central America, but to support CBP.