Kids everywhere plan a walk out and protest the war. Set a date and LET your principle of the school in on it, don't just walk out. Most of the time they will be cool with it. well at least they did when i was a kid. Make signs start a meet up group before the walk out to plan everything out. Put your rights to work. Get friends of friends to do the same in there schools and set your walk out on the same day. Make people notice that we do care.
If anyone want to do this and needs some help planning something like this let me know. When I was a kid in middle school I organized some walk outs in my school to protest the 1st gulf war in 1990 and got a lot of kids asking questions about the war. Even the kids who seemed like they never cared about us hippies came out to support the cause and we all came together.