Brian Van Reet is a former US Soldier who served in Iraq. He opposes the invasion and occupation of Iraq by US forces, but he is hardly your "stock standard liberal".
Van Reet has just posted a wonderful article at his blog where he links the attitude of Muslims in the Middle East to the existence of Israel and America's support for it. He is genuinely impressed by Ariel Sharon's desire to move on from military engagement and work for diplomacy with moderate Palestinians.
But his article also touches on his service in Iraq. I won't say anymore, just go and read it.