answer:“war crime” is a term that is hardly defined by anyone. It’s one of those words that is thrown out for publicity and headlines. Right or wrong is sort of irrelevant in international relations. The US is Saudi Arabia’s ally, which means we won’t say anything. The Houthis are Iranian-supported, so there’s that angle as well; we don’t love Iran, in case you haven’t noticed. Interestingly, Israel and Saudi Arabia are best buddies in this Yemen conflict, too, which is pretty odd too. But it just goes to prove that politics and regional interests are far more important than right and wrong. Finally, and more to the point – Yemen as a country fell apart 3 years ago. There wasn’t much of a Yemeni government before that, but it got a whole lot worse after the Arab Spring. There is no Yemeni government to come to the aid of. All there is—two tribes. No other country really cares about what happens to Yemen.