Salafi Arabia, backed by the US, has attacked the Yemeni port of Hodeidah.

It claims this is ok because it first asked the Houthis to abandon the city and they wouldn't.

The Houthis took most of Yemen pretty quickly, and I think the war would have ended in 2016 if Obama hadn't supported Salafi Arabia in intervening. The bulk of the suffering caused by the war has been since then. It would have been much less if the US had done nothing and thus let the Houthis win.