The sixth generation fighter jets are likely to tap into stealth technology and AI. The most advanced fighter jets in the world are known as "fifth generation". They contain technologies developed in the first part of the 21st century. Examples of fifth generation fighter jets include America's F-35 Lightning II and F-22 Raptor , China's Chengdu J-20 and Russia's Sukhoi SU-57. Now, however, nations are moving ahead with the sixth generation of combat jets. In the past few months, China has flown its J36 and J50 prototype jets . Meanwhile, the US has selected Boeing to build a new fighter...