If the people get really ticked off by sending troops to Iraq the people have the power to stop the Administration.
Back in the 60s people who were against the war and didn't want to be drafted had a chant, Hell No We Won't Go and that is what the People now need to do, return to the Anti-War Sentiment and Movement of the 60s and early 70s.
Except this time it won't just be young Radicals Protesting it will also be their Parents and other Older People.