The Chengdu J-20 (Chinese: 歼-20; pinyin: Jiān-Èrlíng), also known as Mighty Dragon (Chinese: 威龙; pinyin: Wēilóng), is a twinjet all-weather stealth fighter aircraft developed by China's Chengdu Aerospace Corporation for the People's Liberation Army Air Force (PLAAF). The J-20 is designed as an air superiority fighter with precision strike capability; it descends from the J-XX program of the 1990s. The aircraft made its maiden flight on 11 January 2011, and was officially revealed at the 2016 China International Aviation & Aerospace Exhibition. The aircraft entered service in March 2017, and began its combat training phase in September 2017. The first J-20 combat unit was formed in February 2018. The J-20 is the world's third operational fifth-generation stealth fighter aircraft after the F-22 and F-35. The J-20 emerged from the late-1990s J-XX program. In 2008, the PLAAF endorsed Chengdu Aerospace Corporation's proposal, Project 718; Shenyang's proposed aircraft was larger than the J-20. Chengdu had previously used the double-canard configuration in the J-9, its first design and cancelled in the 1970s, and the J-10. In 2009, a senior PLAAF official revealed that the first flight was expected in 2010–11, with a service entry date by 2019. On 22 December 2010, the first J-20 prototype underwent high speed taxiing tests outside the Chengdu Aircraft Design Institute. Three months later, the first J-20 prototype made its maiden flight in Chengdu. In June 2022, a J-20 menaced an RAAF P-8 Poseidon in international airspace over the South China Sea by releasing flares while flying alongside the RAAF aircraft, then cutting in front of it and releasing chaff. For further information on the development, design and operational history of the J-20, click here.