In just over 48 hours since the US and Israel began striking Iran, the conflict has widened fast. Countries that say they aren’t part of it are already being pulled in as their bases, infrastructure and citizens are exposed to retaliation. At some point, America’s allies will have to choose. How much US activity do they host? How far do they stretch “defensive” support? What do they do when their own territory is struck? The longer the fighting drags on, the harder it becomes to stay on the side...