Team Black Eagles. They are Republic of Korea's Air Force Special Ops team specializing in organized teamwork and skilled flying skills through various special flying techniques. Flying advanced supersonic training fighter T-50s, which was developed by South Korea alone, they fly in 27 formations including the yin-yang shape, and the Cupid arrow. It's an art of flying. On October 1st, Republic of Korea's Armed Forces Day, they beautifully showed off their flying skills during an air show for the national holiday festival.