Fred (my brother),
I have a fairly standard 'redemptive-historical" answer to the question you posed, but first, allow me a retort:
How is what is described in the article any more indiscriminate than any other of the grinding wars this world has seen? Because those boys in the article were trying harder, or had overall better fire discipline? Because its our (federalism!) war? Because "God is on our side?" Because its just? I never accepted any of those premises. Where is it written that the US is "the rod of God's anger" against the Middle East, or Iraq in particular, or against Muslims? All I see is violence, blood, the stirring of a pot to a boil. In one sense, it really doesn't matter much what our attitude is to all the deaths. They see them as murders needing revenge!!
I don't want to hijack this thread, and I don't want to politicize it, but before we as believers sign on to any war, and somehow expiate the guilt (Ex. 30:12; Num. 1:2-3; cf. 2 Sam. 24) of tens of thousands of dead men, women, children, aged, infants, we better be for sure God is on our side, or we are damned, for sure (federally speaking). When someone invades you, you shoot all of "them;" if any survive, "lucky" for them. When you invade someplace else... putting a whole populace under the gun for "crimes" of its head... a head God instructed them to submit to... a nation innocent of (recent) agression... how much "unlucky" blood spoils the operation?
I'm positive we as a nation must start empathizing with those caught in the conflict, until the anguish is more than we can bear, and we leave off (2 Ki. 3:27). When I read about a family who've seen their hope lying cold on a steel tray, covered in blood, I see my own daughter's face in a masque of death. I feel for the soldier in the grip of his nightmares, because I've been a soldier. Don't stifle those feelings, of shared humanity; nourish them.
Here's my redemtive historical response: God put our fathers under Moses' political system, set them inthe midst of nations, ordered them at times into conflict, raised up defenders, judges, and kings, in order to bring in the Messiah, and to leave us indellible flesh and blood examples for our instruction, in the age of the Spirit. We find only a limited number of times God ordering a holocaust or putting an entire entity under a ban of annihalation. Despite these exceptions, the concept of mercy in wartime is clearly well-known in the OT. It would shock me to find that an Israelite army was not a thousand times more merciful to enemies than the idolatrous nations around them. God showed to (among other places) wicked Nineveh, his own merciful nature in caring for over 120,000 pagan children, and many amimals, living in a place he had marked for destruction. God certainly did not bless every case of Israelitish war, and after the conquest of Canaan, we do not read of him awarding them additional land. He often gives them victory in battle against agressors; he makes them the head, and not the tail, during periods of faithfulness. The brutality of ancient warfare is an object lesson in the pages of Scripture, especially as it was conducted against the faithless people of God. Jehovah visited the bloodshed of faithless Israel and Judah back on their heads. Whence come our wars? Do "they" really hate us because we are so virtuous?
I, for one, will not equate a US army in AD 2004 with an army of Israel in the OT, were they never so disciplined, full of human compassion, or judicious. The large disparities overshadow the points of comparison.
And I've said too much already...