What was the motive for invading iraq? religion or patriotism? or whatever works for each soldier?

Because in chrisrianity fighting for God is taboo it says you should turn your other cheek to your enemy,or infact its just a capitalist cru$ade for oil and patriotism is just a magic that the ruling party invented it to make us fuel to their wealth? is it a good enough reason to spend all of this time in iraq just because im a patriot?!! how did saddams weak army threat america?where patriotim is involved in going overseas to fight a stonage army?..and do you think the churches that preached cru$ade got paid by hellyburnton/haliburton?