With the President hell-bent on attacking Syria, and doing everything he can to garner support for his cause, it is of vital importance to contact your Congressional Representatives and let them know that America does not want this war.
Here is a copy of a letter I wrote to my representatives. Feel free to copy it, change it and make it your own. Just do it. Do it now.

Dear

If ever there was a time that you should pay attention to your constituents, it is now.  The President’s ill conceived, plan to wage a limited strike against Syria will contribute nothing to our national security, will further increase our national debt, and will stretch our war-weary military to the breaking point.

Yes, the killing of innocent civilians by the Assad regime (if indeed it was Assad) was a despicable act and worthy of a response.  But that response should be an international one, not one shouldered solely on the backs of U.S. service members. Despite the President’s assurances of a limited engagement, (which would only make us appear impotent), common sense tells us that this will lead to an escalation of hostilities that would keep us fighting in the Middle Eastern theater for years to come, and would result in far more bloodshed that the Assad regime’s chemical attacks. It would also activate the terrorist threat within our borders, and cause energy prices to skyrocket. There is no clear justification for our going it alone, no clear mission, and no clear exit strategy.

You were elected to your office as a representative of the American People.  Your duty is not to the President, it is to us.  I urge you to the job you were elected to do.  To bring the voice of your constituents to Washington and vote against any resolution to attack Syria.   The American People do not want this war, there is no immediate threat to our borders to justify this war, and it can only end badly for us.

Sincerely,

Here is the way to contact your representatives.

House

Senate