You can support the recommendations by the Iraq Study Group by sending letters to our Arizona US Senators:
http://kyl.senate.gov/
http://mccain.senate.gov/

And of course you can send letters to the President and his Cabinet members:
http://www.whitehouse.gov/president/
http://www.whitehouse.gov/government/cabinet.html

Go here to find out more about the Iraq Study and what they've done:
http://en.wikipedia.org/wiki/Iraq_Study_Group
http://www.usip.org/isg/