Michael Shermer, on his SkepticBlog posted last week, touched on this issue.

To go along with the picture in the video which says - "New Testament" on the barrel of a tank - Shermer reports - "an inscription in large red letters painted on the side of a Bradley Fighting Vehicle that reads in Arabic script: “Jesus Killed Mohammed."

From Shermer's essay:

Shermer: None of this would matter were it not for the fact that soldiers are sworn into the military to protect and defend the Constitution of the United States, not the holy book of their religion. This is what it means to be a secular nation: not that the majority of its citizens are secular, but that its government favors no religion and, in fact, separates church and state. That is not a problem for most religious soldiers, but for evangelicals, by definition they are suppose to evangelize (or else they wouldn’t be evangelicals), and that means trying to convert those around them to evangelical Christianity. And those around them are either fellow soldiers or citizens of an occupied country. Enter the Officers’ Christian Fellowship (OCF), with 15,000 members in 80% of military bases, and growing 3% per annum. Sharlet quotes OCF director Lieutenant General Bruce L. Fister, who equated the “global war on terror” to “a spiritual battle of the highest magnitude.” The Muslims have their jihad and the Christians have their spiritual battle. Onward Christian Soldiers.