When I see POTUS, DoD and Football in the same Q post my mind goes to this…
https:// en.wikipedia.org/ wiki/Nuclear_football
The nuclear football (also known as the atomic football, the President's emergency satchel, the Presidential Emergency Satchel,[1] the button, the black box, or just the football) is a briefcase, the contents of which are to be used by the President of the United States to authorize a nuclear attack while away from fixed command centers, such as the White House Situation Room. It functions as a mobile hub in the strategic defense system of the United States. It is held by an aide-de-camp.