What ECs in high school for International Relations?

<p>Hey guys,
I want to major in IR in college but I'm not sure what ECs are best to show an interest. YES, I know that colleges don't really care WHAT you do as long as you're doing it well, but I want at least one thing that shows I'm interested in international affairs.
I'm currently doing:
Key Club
Duke of Edinburgh's Award
Choir
Ballet
World Food Programme Student Advocate</p>

<p>I plan to start teaching children Spanish sometime soon.</p>

<p>What activity (summer or otherwise) would tell the admissions officers that I am passionate about the field? If it is online that's even better. I am willing to start organizations/groups.</p>

<p>Model U.N.?</p>