Helicopters perform during the final day of an air show to mark the 70th anniversary of the Sri Lanka Air Force in Colombo, Sri Lanka, on March 5, 2021. (Photo by J.Kumara/Xinhua)
Military aircrafts perform during the final day of an air show to mark the 70th anniversary of the Sri Lanka Air Force in Colombo, Sri Lanka, on March 5, 2021. (Photo by J.Kumara/Xinhua)
Helicopters perform during the final day of an air show to mark the 70th anniversary of the Sri Lanka Air Force in Colombo, Sri Lanka, on March 5, 2021. (Photo by J.Kumara/Xinhua)