July 2 (UPI) -- 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, the Pentagon's chief spokesman Sean Parnell said Wednesday, amid the Trump administration's crackdown on immigration. The fourth National Defense Area will be controlled by the U.S. Navy and encompass approximately 140 miles of federal property along the U.S.-Mexico border near the Barry M. Goldwater Range in