I don’t think you have to prove there is something wrong in Iraq. We all know of Saddam and his henchmen.
What you have to prove in this forum is how a true Christian who follows the word of our Lord Jesus Christ can use physical force to defend or liberate anything. Jesus Christ never told his disciples at any point in time to do this, on the contrary. He specifically said to love your enemies, to help one another, etc... even if it means you have to suffer here on this earth. For your kingdom will be in heaven.