LONDON — Iranian forces' closure of the Strait of Hormuz has sent shockwaves through global trade, with little sign of a break in the deadlock. Here are five ways that experts say commodities could begin moving again through the strait, through which 20 percent of global oil supplies normally pass. US-led military action The most-talked-about option is for the US and willing allies to secure the 167-kilometre (104-mile) long passage militarily, but it is a mission fraught with difficulties. Some 23 commercial vessels have reported incidents or attacks to the United Kingdom Maritime Trade Operations — a naval monitor — and seafarers fear they could be hit by drones, missiles or sea mines if they try to leave. There are currently two US carrier strike groups — naval formations built around an aircraft carrier — in the region, the "bare minimum number of warships" required for an escort mission, Nick Childs, senior fellow at the IISS, told a seminar convened by the London-based defence think-tank. The leaders of the UK, France, Germany, Italy, the Netherlands and Japan on Thursday s