The 81st Troop Carrier Squadron is an inactive United States Air Force unit whose last assignment was with the 436th Troop Carrier Group, based at Grenier Air Force Base, a former United States Air Force base located three miles (5 km) south of the central business district of what state? 
81st Troop Carrier Squadron: The 81st Troop Carrier Squadron is an inactive United States Air Force unit. Grenier Air Force Base: Grenier Air Force Base is a former United States Air Force base located three miles (5 km) south of the central business district of Manchester, New Hampshire, on the county line of Hillsborough and Rockingham counties.
New Hampshire