Lets not forget that the crimes which have been committed (including terrorism) are not committed by nations but by a few wealthy individuals fighting for power and profit who are able to manipulate a few young men to do their dirty work. Its the innocent civilians on both sides that suffer. Thats why war is not the answer.

Why are we killing so many Iraqi civilians and why are so many U.S.
soldiers being killed?

You do not liberate people by destroying their homes.

If it is war you desire, there are an endless number of nations that can be invaded. Thats the plan. War is profitable for Bush and Cheney as well as the people they represent. Its as simple as that. It is not profitable for the taxpayers who fund this madness, the soldiers who fight the war or the peoples who have been invaded.

Nobody wins except the corporate warlords.

To try to rationalize war is like trying to rationalize madness. You can't because there is no reason involved, only greed.