And finally, the Chinese Air Force has released a promotional video to celebrate the New Year. The two and a half minute promo displayed some of the country's top guns that have been safeguarding the nation. That includes China's fourth-generation stealth fighter jet, the J-20. The medium and long-range aircraft made its maiden flight in 2011, and was first revealed to the public at the 11th China Air Show in Zhuhai, in November 2016.