If I move to south korea after highschool, will I have to fulfill military service there?

I'm in my second year of highschool in US. If I move to South Korea after highschool and college here, will I have to fulfill military service there? I understand there's some kind of mandatory service you have to do after some point. Thanks for any help you can give me =)

If you are a South Korean male citizen between 18 and 35 years old you're subject to the mandatory service law.

http://en.wikipedia.org/wiki/Conscription_in_South_Korea