Critics say brash, bombastic Fox News host out of his depth to guide US military through murky new Middle East conflict

Brash and bellicose, he sounded more like a cartoon bully than a sombre statesman. “Death and destruction from the sky all day long,” Pete Hegseth, wearing a red, white and and blue tie and pocket square, bragged to reporters at the Pentagon near Washington. “This was never meant to be a fair fight, and it is not a fair fight. We are punching them while they’re down, which is exactly how it should be.”

Hegseth, 45, a former Fox News TV host who now commands the world’s most powerful military, has this week become the face of Donald Trump’s war in Iran. That has set off for alarm bells for critics who warn that the Secretary of Defense – pointedly rebranded “Secretary of War” – has rapidly transformed the Pentagon into the staging ground for an ideological and religious crusade.

With machismo, Christian nationalism and callousness toward the lives of US troops, they say, Hegseth’s puerile displays on TV are aimed at sating Trump’s desire for a warmonger worthy of the manosphere. This was reinforced by a lurid social media video that intersperses clips from Hollywood blockbusters such as Braveheart, Gladiator, Superman and Top Gun with Hegseth and real kill-shot footage of the attacks in Iran.