The US has negotiated a fragile ceasefire that could reopen the Strait of Hormuz, but Asian allies depend on this for energy security. This comes after Iran effectively closed the strait after initial airstrikes by the US and Israel in February. US President Donald Trump criticised other nations for not sending military support and suggested that those who need it should "take the lead". This sentiment has been echoed in the Asia-Pacific, where economies lost their biggest source of energy imports and have been hit first by the global oil crisis. US allies Japan, Thailand, South Korea and the Philippines have sought deals with Iran to ensure the safe delivery of oil and natural gas. Meanwhile, China has shown its willingness to help alleviate fuel shortages and deepen energy collaboration with nearby economies. The decision to go to war has reshuffled energy trade and partnerships in the region, with long-term implications for the US's alliances in Asia.