Dec. 9, 2019 Team Charleston Bids Farewell to Col. Happy Gilmour Col. Gregory S. Gilmour, outgoing commander of the 315th Airlift Wing at Joint Base Charleston, retired after 33 years of service across the U.S. Air Force Reserve and U.S. Navy at a ceremony Dec. 8, 2019, at JB Charleston.“You couldn’t find a better character in a leader or a friend,” said Brig.