The Chinese air force has released video of its GJ-11 stealth attack drone flying alongside and linked to the J-20 fighter jet in what is the first footage of the country’s crewed and uncrewed aircraft working together. The footage appeared in a promotional video released by the People’s Liberation Army (PLA) Air Force on Tuesday to mark the 76th anniversary of its founding. It shows the drone flying in formation with the J-20, China’s most advanced fighter jet, as well as the J-16D fighter, a...