ISLAMABAD (APP) A contingent of Pakistan Air Force (PAF) F16 combat aircraft along with fighter pilots and technical crew departed a PAF Base for USA to participate in the forthcoming Air Force Exercise, Red Flag scheduled to commence on 15 July. Some of the leading air forces of the world including the United States Air Force would also take part in the exercise, said a Press release. PAF F16s would fly across the Atlantic Ocean to participate in Red Flag exercise. Red Flag, one of the most reputed Air Force exercises in the world, is being held periodically in USA since 1975. However, PAFs participation in this exercise would further hone the skills of its combat and technical crew in facing the challenges of effectively employing airpower in the 21st century.