I for one support our actions as I truly feel that in the end it will be prooven that they were needed.
While I don't agree with those who oppose the war, I still recognize that living in a free society we have the right to do so.
In many ways our troops provide the liberites that we all enjoy. I think that the anti-war demonstrations in many ways contribute to undermining the morale of our military.
As you stated complain to the politicians. The best way is not to vote for them.