Having found yourself in a war...

Let's imagine you're in a war (either World War I or World War II, whichever you prefer). What specialty would you like to have? (Let's not consider any health issues and choose what you like). For example, I like airplanes, especially from World War I. So I would like to try flying. I think it would be interesting, and I would enjoy it, despite the high risk and danger, and of course, the difficulty.