On the sixth day of the US-Israeli war with Iran, the Strait of Hormuz is remains effectively closed to shipping, despite the US Navy crippling Iran’s surface fleet - including by torpedoing a Frigate off Sri Lanka.

On today’s episode of Iran: the Latest, Roland Oliphant speaks to former Royal Navy commander Tom Sharpe about how Western militaries have prepared for years for a big war with Iran; why Iranian maritime forces are equally well prepared; and the cruel necessities of submarine warfare.

And Nicholas Hopton, a former British ambassador to Iran, explains the three conditions necessary for a regime collapse - and why none of them have yet been met.

Read: The US submarine which torpedoed the Iranian frigate will soon be flying the Jolly Roger, by Tom Sharpe: https://www.telegraph.co.uk/news/2026/03/05/us-submarine-torpedo-iranian-warship-jolly-roger/

Read: Will America betray the Kurds again? by Owen Matthews: https://www.telegraph.co.uk/news/2026/03/05/will-america-betray-kurds-again/

Producer: Peter Shevlin

Executive Producer: Louisa Wells

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