Without diplomacy or restraint, the economic shock will deepen and US soldiers may become embroiled in a quagmireThe fifth week of Donald Trump’s illegal war on Iran has confirmed the absence of any overarching strategy. The US continues to hit Iranian targets while building up forces in the region. Iran continues to launch missile and drone attacks on Israel and neighbouring Gulf states. Tehran’s proxies in the region have entered the fray. Its closure of the strait of Hormuz has seen oil prices shoot up and had knock-on effects already visible across fuel, fertiliser and supply chains. No amount of contradictory social media posts from Mr Trump can negate the shortages felt across the world, from Asian factories to European diesel markets. The pain is likely to get worse. There is no sign of imminent US victory or Iranian collapse.This instead looks like a war of attrition. Each side can point to successes and their opponents can highlight failures. That is what sustains the con...