Is the UK right to refuse joining Trump's blockade of the Strait of Hormuz?

The Strait of Hormuz handles about 20% of global oil trade. Iran has disrupted shipping there amid escalating US-Iran tensions over nuclear activities and regional conflicts. US President Donald Trump announced a blockade of Iranian ports starting April 13, 2026, requesting UK warships, but Prime Minister Keir Starmer refused involvement, prioritizing diplomacy and freedom of navigation coordination with partners.