cnn.com/2025/04/11/politics/us…

(Trump) plans for the military to take command of a swath of territory along the border by designating federal lands as a military installation. Migrants who cross in this area would be put into “holding” for trespassing onto a military property, CNN previously reported, until the Department of Homeland Security could arrive to pick them up and deport them — putting the military in the position of effectively detaining migrants, something that is traditionally a law enforcement function. The military is prohibited from carrying out domestic law enforcement under the 1878 Posse Comitatus Act, but by describing the zone as a “holding” area, DoD could feasibly circumvent that law.