Nevada, February 22 (QNA) - Prince Khalid bin Sultan bin Abdulaziz, Deputy Minister of Defense of the Kingdom of Saudi Arabia and his accompanying delegation arrived today at Nellis Air Force Base, Nevada, the United States of America, to attend and follow up the participation of Royal Saudi Air Force in Exercise Red Flag - 5 and Green Flag - 2 with Air Forces from the United States of America and a number of friendly countries, Saudi Press Agency (SPA) reported. (QNA)