Weapon of the future, today: Russia unveils ‘Checkmate’, new 5th-generation lightweight stealth fighter, unmanned version in works https://www.rt.com/russia/529762-check-mate-fighter-stealth-jet/ https://www.forbes.com/sites/davidaxe/2021/07/18/russias-new-fighter-breaks-cover-its-got-stealth-writ...