No troops should be compelled to participate in entertainment, especially that which is religious propaganda.
There is a link off the link in the OP which is packed with info about how our military has been infiltrated by the Dominionist type Christian fundamentalists:
http://harpers.org/archive/2009/05/0082488Just a brief exerpt:
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.
As a whole, the military is actually slightly less religious than the general population: 20 percent of the roughly 1.4 million active-duty personnel checked off a box for a 2008 Department of Defense survey that says “no religious preference,” compared with the 16.1 percent of Americans who describe themselves as “unaffiliated.” These ambivalent soldiers should not be confused with the actively irreligious, though. Only half of one percent of the military accepts the label “atheist” or “agnostic.” (Jews are even scarcer, accounting for only one servicemember in three hundred; Muslims are just one in four hundred.) Around 22 percent, meanwhile, identify themselves as affiliated with evangelical or Pentecostal denominations. But that number is misleading. It leaves out those attached to the traditional mainline denominations—about 7 percent of the military—who describe themselves as evangelical; George W. Bush, for instance, is a Methodist. Among the 19 percent of military members who are Roman Catholics, meanwhile, there is a small but vocal subset who tend politically to affiliate with conservative evangelicals. And then there is the 20 percent of the military who describe themselves simply as “Christian,” a category that encompasses both those who give God little thought and the many evangelicals who reject denominational affiliation as divisive of the Body of Christ. “I don’t like ‘religion,’” a fundamentalist evangelical major told me. “That’s what put my savior on the cross. The Pharisees.”