China's sixth-generation fighter program is accelerating after fresh footage reportedly showed a fifth prototype entering flight tests. According to Military Watch Magazine, the rapid pace has fueled speculation that the PLA could field next-generation combat aircraft years earlier than previously expected. The report says Chengdu and Shenyang are developing two advanced fighter designs to eventually succeed the J-20, while China continues expanding its broader air power with new missiles, satellites, tankers and airborne warning aircraft. Could Beijing's newest stealth fighters reshape the balance of power across the Pacific?