China deploys giant drone Subs off Hainan, dwarf US & EU designs, experts warn

China has secretly deployed colossal uncrewed submarines—measuring up to 42 meters—off Hainan Island, according to new satellite imagery analysis. Known as XXLUUVs, these vessels dwarf all U.S. and European equivalents and signal a major leap in undersea warfare. Defense experts warn the stealthy subs could lay mines, launch torpedoes, deploy drone swarms, stalk U.S. carrier strike groups, and even sabotage underwater cables. Watch for more