Donald Trump is pressuring European allies to protect the strait of Hormuz, warning that Nato faces a ‘very bad’ future if members fail to offer assistance.

The strait of Hormuz is one of the most important shipping routes in the world. A fifth of international oil supplies pass through the waterway, which has been disrupted since the start of the war.

Lucy Hough speaks to the Guardian’s south Asia correspondent, Hannah Ellis-Petersen – watch on YouTube