I wonder who is tasked

in the White House Situation Room to update either Messr's Mattis, McMaster or Kelly if any "unusual" military orders are issued by the President? Whatever the set up is, given the military caste of the President's current advisory regime it's likely a simple set up.  Allegedly in the run up to August 1974, then SecDef Schlesinger told the JCS to accept no orders from Richard Nixon unless countered by the Defense Secretary...mind you, I used the a-word as the historic record is sketchy on this point.
This is worth contemplating as we swing from sanctions to bluster with respect to North Korea....