Jesus killed Mohammed: The crusade for a Christian military, by Jeff Sharlet. Harper's, May 2009.
When Barack Obama moved into the Oval Office in January, he inherited a military not just drained by a two-front war overseas but fighting a third battle on the home front, a subtle civil war over its own soul. On one side are the majority of military personnel, professionals who regardless of their faith or lack thereof simply want to get their jobs done; on the other is a small but powerful movement of Christian soldiers concentrated in the officer corps. There’s Major General Johnny A. Weida, who as commandant at the Air Force Academy made its National Day of Prayer services exclusively Christian, and also created a code for evangelical cadets: whenever Weida said, “Airpower,” they were to respond “Rock Sir!”—a reference to Matthew 7:25. (The general told them that when non-evangelical cadets asked about the mysterious call-and-response, they should share the gospel.) There’s Major General Robert Caslen—commander of the 25th Infantry Division, a.k.a. “Tropic Lightning”—who in 2007 was found by a Pentagon inspector general’s report to have violated military ethics by appearing in uniform, along with six other senior Pentagon officers, in a video for the Christian Embassy, a fundamentalist ministry to Washington elites. There’s Lieutenant General Robert Van Antwerp, the Army chief of engineers, who has also lent his uniform to the Christian cause, both in a Trinity Broadcasting Network tribute to Christian soldiers called Red, White, and Blue Spectacular and at a 2003 Billy Graham rally—televised around the world on the Armed Forces Network—at which he declared the baptisms of 700 soldiers under his command evidence of the Lord’s plan to “raise up a godly army.”

What men such as these have fomented is a quiet coup within the armed forces: not of generals encroaching on civilian rule but of religious authority displacing the military’s once staunchly secular code. Not a conspiracy but a cultural transformation, achieved gradually through promotions and prayer meetings, with personal faith replacing protocol according to the best intentions of commanders who conflate God with country. They see themselves not as subversives but as spiritual warriors—“ambassadors for Christ in uniform,” according to Officers’ Christian Fellowship; “government paid missionaries,” according to Campus Crusade’s Military Ministry.