Story by John Turner, U.S. Air Force MALMSTROM AIR FORCE BASE, Mont. (AFNS). — Two MH-139 Grey Wolf helicopters assigned to the 40th Helicopter Squadron conducted their first operational mission Minuteman III intercontinental ballistic missile convoy Jan. 8, marking an important milestone in the modernization of Air Force Global Strike Command’s nuclear security operations. The MH-139s shepherded a column Leer másMH-139 Grey Wolf helicopters complete first security mission[…]