will respond if the Houthis 'continue this outrageous behavior.' The Houthis, who control much of Yemen, have vowed retaliation, raising concerns of a broader regional conflict.and British militaries targeted more than 60 sites in Yemen, after weeks of attacks on international shipping in the Red Sea that the militants say are aimed at backing Hamas. The strike was on a much smaller scale than the coordinated strikes on Thursday, when the U.S.conducted another, unilateral strike in Yemen last night, according to two U.S.