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An ex-colonel from the special forces, minister of state Al Carns was this week on manouevres warning that the UK must ready itself for war with Russia.

“The shadow of war is knocking on Europe’s door again. That’s the reality. We’ve got to be prepared to prevent it,” he said, in comments that go beyond previous admonitions by his boss, the defence secretary.

“As a whole society – what is their role if we get caught in an fight for survival, and what do they need to be aware they need to do and what they can’t do, and how do we rally the nation to support a military endeavour?”

It was stark language from the 45-year-old Scottish-born MP, who has had an remarkably rapid rise to his role of minister for the military.

A Swift Political Ascent

And inevitably for a politician with a background in the armed forces, there is speculation about whether he is a potential future leader – as with, at various points, previous colleagues from a service background before him.

This time, however, some ruling party MPs think there could be a real prospect of Carns being a candidate if and when the opportunity presents itself.

One of the reasons for that is that Carns has been involved in politics for longer than it seems, as a former defence advisor to multiple previous defence secretaries.

But there is also the risk of being over-promoted as a politician with a backstory colleagues think will resonate with the public – without enough thought of whether they have the track record and shrewdness to make it to the top.

From the Battlefield to Westminster

Carns was born in Aberdeen, and state educated, before enlisting in the Royal Marines in 1999 at the age of 19. He advanced his career and was awarded the Military Cross in 2011 “for gallant and distinguished services in Afghanistan”.

It came as a shock when he left the armed forces after 24 years of service to stand as an MP in Birmingham Selly Oak, shortly before he was due to be promoted to brigadier.

And in a sign he was immediately identified as a talent, the prime minister appointed him as a junior veterans minister straight after the 2024 election. He was promoted later that year to the more senior role with a portfolio covering all the military.

Media Presence and Political Attacks

With a commanding presence, Carns has been an occasional media performer for the government, and has been an sharp partisan operator when criticising rival parties over issues of national security.

He has also found time to break a world record this year along with former military colleagues by climbing Mount Everest in under five days without acclimating on the mountain, aided by xenon gas.

Leadership Speculation and Internal Caution

His name was floated as a possible future leader seriously around the time of a deputy contest last autumn, when his backers began sounding out MPs about a run for the job. That did not gain traction, with the prime minister's office firmly backing another candidate.

Since then, feature articles of Carns have begun to appear in the media, with one newspaper presenting him as the “Action Man” that some were trying to prevent from ousting the prime minister.

While some MPs think he could be leadership material, others think he is making himself appear overly eager when there is no vacancy at the top. There is also a apprehension about the meteoric ascent of a high flyer from outside politics.

“It's not proven that being senior in the military translates to being any good at politics any more than being a top prosecutor,” says one MP. “He is completely untested.”