The fundamental problem with the Western way of war strategy in the 21st century is on display in Yemen. The Houthis, an Iranian proxy militia, are everyone’s problem. In their current siege of the Red Sea shipping route and the waterways around Yemen, they have killed innocent crew members, sank ships, targeted U.S. Navy vessels with missile attacks, held global trade hostage, and expanded regional war. They are also, by the way, deliberately starving the Yemeni civilian population—an act that