When you say we should be fighting Islamic law, what do you mean? Putting aside the issue of whether or not a US soldier in Saudi Arabia can have an issue of Playboy sent through the mail, what substantive policies should be put into effect?
I mean that non-Muslims should have to be treated as equals to Muslims there. That is not happening though.
http://islaminaction08.blogspot.com/2008/11/iraqchristian-sisters-murdered.html
Also Islam should not of been allowed to be in their constitution.