The United States destabilized Yemen with a massive killing spree known as a “drone war.” The United States armed Saudi Arabia to bomb Yemen with jets, supplied the jets, supplied the bombs (and cluster bombs), refueled the jets midair, provided the targeting information, provided the cover at the United Nations, and deployed its ships to the coast of Yemen as part of its effort to achieve U.S./Saudi power in Yemen through mass murder and devastation. If one group or another or nobody in Yemen fired some harmless shots at a U.S. ship the outcome is the same: zero legal or moral or practical justification to continue or escalate the killing, and zero logic in calling such escalation “defensive.”