I'm not in the military (nor I think I'll ever be) but my father and relatives were in the army. It's a rule in South Korea that all males born in South Korea must take part of the army. Even if they are a US residence, they were born there.
Just to point out. ^_^
Chrome Dokuro [Katekyo Hitman REBORN!]
Rin [Togainu no Chi]
Lucina [Fire Emblem Awakening]