That's a girl who eats a lot of beef.
Also, if you're in the military you're acting on behalf of your country. Break laws your country has or act in a way that is unbefitting of a service man (such as fucking a 13 year old you fucking gross fucks) and you'll definitely be severely punished and dishonorably discharged. This is pretty universal, I think. If you found a tribe on a deserted island that didn't have age of consent laws you'd be kidding yourself if you thought the army would just turn a blind eye to you fucking an underage girl.