I know a guy who might be considered a born warrior in that respect.

He joined up to the army, then left a couple of years later, because he didn't get deployed (he was in the NZ army, and joined around the same time that we were pulling out of Afghanistan). He was then training to be a firefighter, before settling in being a nurse of all things.

It wasn't that he wanted to fight, he just has a hero complex, not that a hero complex is a bad thing.