Not that long ago, Englishman Michael Enright was playing a man embroiled in conflict and violence on the silver screen. Of course, that was pretend, when he was cast as a deckhand in the super-popular motion picture Pirates of the Caribbean: Dead Man’s Chest.

These days though? He’s not pretending anything. Especially violence.

He’s a man who’s elected to fight with the Kurdish People’s Protection Units in Syria, to assist in bringing about the downfall of the Islamic State, otherwise known as ISIS.

He goes by the name Mustafa Michael Ali, and he’s condensed all of his life’s goals into one singular motive: kill ISIS militants, no matter the cost.

“ISIS, they need to be wiped off completely the face of this earth,” Enright said. “They are a stain on humanity.”

“This is a call on humanity to obliterate them,” he added.

More from the Washington Post:

“For me, the biggest regret of my life was not going to Afghanistan when 9/11 happened,” he told the Daily Mail. “The beheading videos brought out the same kind of feelings in me, and a real sense that I had a duty to America. I really feel a debt to the country. You know, they welcomed me with open arms.”

He added: “And then what added to it all was that it was an Englishman [Jihadi John], that he had an English accent. And I just, it just touched me personally, in a very deep way.”

Then came the stories about the rape and killing of the minority Yazidis in Iraq. And the final straw: the Islamic State’s video showing a Jordanian pilot being burned alive.

“I just thought… I’ve got to try to right that wrong,” he said.

See him talk to an interviewer from a Dubai-based television station in the video.