You've come to the right place to get honest information and debate about the issues that concern you. You care about the Iraqi people, or you wouldn't have gone to Iraq. So you're misinformed, but not unfeeling.
You care about peace...that's plain because you have put yourself in a dangerous situation in the name of peace, but have you considered the concept of enduring, long-term peace?
My sincere advice is to lay low, take your lumps on this post, and read, read, read. FR participants are some of the most informed, articulate people you'll cyber-meet. I learn something new on this board nearly every day, and often find that my previous bedrock thoughts and beliefs are modified because of the honest debate that goes on here.
Don't assume you're right on everything, and be willing to debate issues with an open mind. No cause is hopeless.