Riyadh, August 3, 2021, SPA -- Joint Missile Air Defense Exercise Planning Conference kicked off on Thursday at the Air Force Operations Center at King Salman Air Base in the Middle Sector between specialists from the Royal Saudi Air Force, the Royal Saudi Air Defense Forces, joint forces and US Air Forces. The exercise aims at maintaining regional security and stability through simulating possible air threats. -- SPA 10:17 LOCAL TIME 07:17 GMT 0010 www.spa.gov.sa/w1596005