The US President has recently made a public demand for Iran to open the strategically-important strait, a major thoroughfare for the global oil trade. This is an effort to de-escalate tensions and restore the flow of maritime traffic, asserting international rights to freedom of navigation. Yet, it heightens concerns about prospects for peace in the region amid a history of conflicts.

As Japan is heavily reliant on oil imports, access to the Strait plays a critical role in Japan's energy security. With Japan's pacifist constitution and its commitment to international law and order, the nation broadly supports efforts to maintain open and peaceful sea lanes. Any potential halt or disruption in the flow of oil could severely impact Japan's economy and stir a national debate about energy policy and dependence on foreign oil.

In the US and EU, the issue of open maritime straits is also seen as one of international law and order. While EU countries are less directly reliant on the Strait than Japan, the US has a strong interest due to its alliances with oil-producing countries and its military presence in the region. Strained relations with Iran would be taken seriously, triggering discussions on diplomatic strategies and sanctions.