Why do Christians support Iraq War?

I fail to make the connection between the Bible and how it justifies such actions.

In the eyes of these "people",

1. God supports the idea that wealthy people are rich because they are faithful and honest.
2. God supports the death penalty for some, but not all the crimes mentioned in the Bible that God specifically said should be crimes punishable by death.
3. God supports "liberating" other countries against the will of the citizens.
4. God opposes the "inhumane" killing of unborn babies.
5. God opposes communism (opposes equality).