JASDF airmen prepare to compete in annual NADF English Competition Published Oct. 20, 2021 By Senior Airman China M. Shock 35th Fighter Wing Public Affairs MISAWA AIR BASE, Japan -- Japan Air Self-Defense Force (JASDF) airmen prepare to compete in the annual Northern Air Defense Force (NADF) English Competition at Misawa Air Base, Japan, Oct. 14, 2021. The NADF English Competition is a tournament open for all the uniformed JASDF personnel to compete in their English proficiency.