Arkansas

This was Mayday 1971.

From wiki "10,000 federal troops were quickly moved to various locations in the Washington, D.C. area. At one point, so many soldiers and Marines were being moved into the area from bases along the East Coast that troop transports were landing at the rate of one every three minutes at Andrews Air Force Base in suburban Maryland, about 15 miles east of the White House. Among these troops were 4,000 paratroopers from the U.S. 82nd Airborne Division. Troops from the Marine Barracks lined both sides of the 14th St bridge. These troops were to back up the 5,100 officers of the D.C. Metropolitan Police, 2,000 members of the D.C. National Guard and federal agents that were already in place."