The Trump administration’s plan to transfer federal land along the southern border to the U.S. military includes lands in New Mexico that extend well beyond the Roosevelt Reservation, a 60-foot strip of land along much of the border, signaling to conservationists that additional public lands in Arizona are also vulnerable to Army takeover. That could mean parts of Cabeza Prieta National Wildlife Refuge, Coronado National Forest and Organ Pipe Cactus National Monument could become a staging area