"437th Operations Group"@en . . . "The 437th Operations Group (437 OG) is an active United States Air Force unit. It is the flying component of the Twenty-First Air Force 437th Airlift Wing, stationed at Charleston Air Force Base, South Carolina.The unit's World War II predecessor unit, the 437th Troop Carrier Group was a C-47 Skytrain transport unit assigned to Ninth Air Force in Western Europe."@en . .