"America's MAG" celebrates 50 years of history - Marines with Marine Aircraft Group 39, 3rd Marine Aircraft Wing, prepare to present the battle color ribbons during the MAG-39 50th anniversary ceremony at Marine Corps Air Station Camp Pendleton, Calif., April 16. MAG-39 held a rededication and battle color ceremony to commemorate the unit’s proud history. (U.S. Marine Corps photo by Lance Cpl. Juan Anaya/Released)

U.S. Marines with Marine Medium Helicopter Squadron (HMM) 364, Marine Aircraft Group 39, 3rd Marine Aircraft Wing (MAW), fly CH-46E Sea Knight helicopters over San Diego, Calif., March 31, 2014. After 47 years of flying the CH-46, HMM-364, “Flies the Barn”, taking off and landing in unison and flying in mass formations, signifying the transition to the MV-22 Osprey. (U.S. Marine Corps photo by Sgt. Keonaona C. Paulo, 3rd MAW Combat Camera/Released) - U.S. Marines with Marine Medium Helicopter Squadron (HMM) 364, Marine Aircraft Group 39, 3rd Marine Aircraft Wing (MAW), fly CH-46E Sea Knight helicopters over San Diego, Calif., March 31, 2014. After 47 years of flying the CH-46, HMM-364, “Flies the Barn”, taking off and landing in unison and flying in mass formations, signifying the transition to the MV-22 Osprey. (U.S. Marine Corps photo by Sgt. Keonaona C. Paulo, 3rd MAW Combat Camera/Released)