According to a poll, conducted by YouGov on Monday, 59% of people oppose the US’s ongoing military action against Iran – an increase of 10 points since March 2.
Of those, 37% said they strongly opposed the action, while 22% said they somewhat oppose.
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Opposition to the United States’ military action against Iran has risen by 10pts among Britons over the last week
Support: 25% (-3 from 2 March)
Oppose: 59% (+10) pic.twitter.com/LOHFZCHldL— YouGov (@YouGov) March 9, 2026
Meanwhile, 25% of Brits said they supported the US’s bombing of Iran, with 10% saying they strongly supported the military operation and 15% saying they somewhat support it – reflecting a drop in three points since the last poll on March 2.
A total of 16% of people surveyed said they did not know.
The YouGov poll surveyed 12,002 GB adults on March 9.
It comes as the Ministry of Defence confirmed it is preparing a second ship for deployment to the Mediterranean.
It had already been announced that HMS Dragon, a Type 45 destroyer, is being readied for deployment.
But the MoD said on Tuesday that RFA Lyme Bay, currently docked is being prepared for deployment “for maritime tasks in the Eastern Mediterranean”.
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The vessel is a landing ship – equipped to function as an aviation platform – with medical facilities, and is often used for humanitarian and disaster relief missions.
An MoD spokesperson said: “As part of prudent planning, we have taken the decision to bring RFA Lyme Bay to heightened readiness as a precaution, should she be needed to assist in maritime tasks in the Eastern Mediterranean.”
The publication of the poll comes just hours after the US president threatened Iran with “death, fire and fury”, despite saying that the war in Iran will end “soon”.
Trump told reporters on Monday that “we took a little excursion” to the Middle East “to get rid of some evil”, adding: “And, I think you’ll see it’s going to be a short-term excursion.”
But hours later on social media, he wrote: “If Iran does anything that stops the flow of Oil within the Strait of Hormuz, they will be hit by the United States of America TWENTY TIMES HARDER than they have been hit thus far.”
In an apparent response to Trump’s remarks published in Iranian state media, a spokesperson for the paramilitary Revolutionary Guard, Ali Mohammad Naini, said: “Iran will determine when the war ends”.
