This one was sent to Andrew Sullivan by a marine in Fallujah. Excerpt:
...this battle is going to have far reaching effects on not only the war here in Iraq but in the overall war on terrorism. We have to be very precise in our application of combat power. We cannot kill a lot of innocent folks (though they are few and far between in Fallujah). There will be no shock and awe. There will be plenty of bloodshed at the lowest levels. This battle is the Marine Corps' Belleau Wood for this war. [...]
This battle is going to be talked about for a long time. The Marine Corps will either reaffirm its place in history as one of the greatest fighting organizations in the world or we will die trying.