British Prime Minister Keir Starmer acknowledged that the longer the war in Iran continues, the higher the likelihood of its negative impact on the British economy.

"The job of government is to get ahead of this, to look ahead, to work with partners. The Chancellor speaks daily with the Governor of the Bank of England, we are also doing cross-government work, assessing risks, monitoring the situation and discussing it with our international partners to understand what more we can do together to reduce the possible impact on people and businesses in our country," Starmer said, adding that "the longer this goes on, the more likely there is to be an impact on our economy, on the lives and budgets of every family and every business."

Starmer also said that the established energy price cap would help protect households from the economic instability caused by the US-Israeli war against Iran, though he acknowledged that businesses would be "concerned" and watching developments closely.

Asked whether the US is using British air bases in connection with Iran, Starmer confirmed this, noting close intelligence cooperation and daily contacts "at all levels." "In the region, our personnel and US personnel are co-located in the same places, on the same bases," he said, adding that both countries are jointly working to protect those bases.

When asked whether Trump risks provoking a world war, Starmer said: "We need to find a way to de-escalate, and that is what a significant amount of our discussions are about — how to find a path to reducing tensions and making sure the situation does not escalate further than it already has."