Two U.S. Air Force air commandos completed a rigorous mountain warfare school in Argentina, becoming the first to do so in the service’s history.The airmen from the 492nd Special Operations Wing and 919th Special Operations Wing graduated recently from the Escuela Militar de Montaña in Bariloche, Argentina, according to a release. The school is set in Patagonia’s rough terrain and is intended to push students to their physical and mental limits.…