US long-range B-2 stealth bombers target underground bunkers of Yemen’s Houthi rebels The Associated PressUS stealth bombers hit Houthi underground weapons depots in apparent warning to Iran The Times of IsraelU.S. Bombs Houthi Weapons Caches in Yemen The New York TimesUS says B2 bombers launched ‘precision strikes’ against Houthis in Yemen Al Jazeera EnglishUS bombers target Houthi weapon sites in Yemen BBC.com