Xinhua on September 28, 2017, quoted Wu Qian, spokesperson for the Ministry of National Defense, as saying that China's latest J-20 stealth fighter has been officially commissioned into military service. He said flight tests are being conducted as scheduled.  The J-20 is China's fourth-generation medium and long-range fighter jet. It made its maiden flight in 2011 and was first shown to the public at the 11th Airshow China in Zhuhai, Guangdong Province, in November last year.