sentences:  Coronet Oak was the name for the continuing operation in which Air Force Reserve Command (AFRC) and Air National Guard (ANG) C-130 aircraft, aircrews and related support personnel deploy from the United States to Muñiz Air National Guard Base, Puerto Rico, to provide theater airlift support for the U.S. Southern Command.The Guard and Reserve support the Coronet Oak mission year round since April 19, 1999 from Muñiz Air National Guard Base when this mission moved from Howard Air Force Base, Panama as result of the U.S. military withdrawal from Panama.Units rotate in and out of Muñiz ANGB every two weeks.