Yes, you can use the Bible to support Ron's foreign policy. First of all "an eye for an eye, a tooth for a tooth, and life for life". This means that it is unacceptable, even in the pursuit of justice, to kill (even unintentionally) more innocent people than your enemy killed. For other great insights on Christian Just War Theory see this link:
Secondly, you can point out that when the Bible says (about Abraham) "...I will bless those who bless you and curse those who curse you..." that Arabs are also descended from Abraham.
Thirdly, Revelation 18:4 says explicitly to get out of Iraq.