British Prime Minister Keir Starmer said Thursday that the conflict involving Iran should mark a decisive shift for the United Kingdom after years of successive crises, pledging to reinforce both the economy and armed forces to face what he described as a more "volatile and dangerous" global landscape.

His remarks followed Tuesday’s announcement by U.S. President Donald Trump of a ceasefire in the six-week conflict with Iran. However, there has been no indication that Tehran will ease its near-total closure of the Strait of Hormuz, a disruption that has triggered the most severe shock to global energy supplies on record.

Starmer warned that the turmoil, which has already driven up fuel costs in Britain and is likely to fuel further inflation and broader economic strain, must serve as a defining moment — a “line in the sand” — for the nation’s future direction.

"Britain has been buffeted by crises for nearly two decades now," he wrote in the Guardian newspaper, citing the 2008 global financial crash and the austerity that followed it, Brexit, the COVID pandemic and Russia's invasion of Ukraine.

"The war in Iran must now become a line in the sand, because how we emerge from this crisis will define all of us for a generation. And instead of hoping to return to the world of 2008, we will forge a new path for Britain – one that strengthens our energy, our defence and our economic security in a new age."

STARMER SEEKS TO REBUILD POLITICAL MOMENTUM

Starmer took office in 2024 after leading the Labour Party to a decisive election victory, but his administration has faced difficulties delivering on key promises, constrained by limited public finances, divisions within his party and an uncertain international environment.

Recent opinion polls show Labour trailing the right-wing populist Reform UK party, headed by Nigel Farage, as the country looks toward the next general election scheduled for 2029.

Even so, Starmer has received broad domestic backing for opting not to participate in Trump’s military campaign against Iran, a stance that has reportedly frustrated the U.S. president.

Attempting to build on that support, Starmer said his response to the Iran crisis would center on strengthening national priorities and improving resilience at home.

"We will not look backwards. We will not aim to recreate the conditions of a world that has now passed us by, and we will build a Britain that is stronger, more secure and more resilient," he said.

"That is what this moment demands: and Britain will not be blown off course."