"The memorandum creates a military buffer zone along the border so that any migrant crossing would be trespassing on a U.S. military base. This would allow active-duty soldiers to hold migrants until ICE agents take them.
By April 20, the secretaries of defense and homeland security are supposed to report to the president whether they think he should invoke the 1807 Insurrection Act to enable him to use the military to aid in mass deportations."