The new world WBA, IBF, WBO and IBO heavyweight champion, Oleksandr Usyk has joined the Ukrainian defense battalion in war against Russia.

Usyk, who ended Anthony Joshua’s reign as a world heavyweight champion with a unanimous win, arrived in Ukraine days ago, said that he plans to conquer the Russian military alongside his fellow Ukrainian citizens.

The 35-year-old pugilist who was speaking via a video link from a basement in Kyiv, Usyk says that he’s prepared to take a life, if necessary if it means defending his country in the current war.

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“If they want to take my life, or the lives of my close ones, I will have to do it,” he said to CNN.

“But I don’t want that. I don’t want to shoot, I don’t want to kill anybody, but if they will be killing me, I will have no choice.”