Pentagon reporter Anna Mulrine brings us this:
According to a report released this afternoon by the Center for American Progress, of all of the U.S. Army's 44 brigade combat teams, just one has not been deployed to Iraq or Afghanistan. The majority--31--have had two or more tours in Iraq or Afghanistan (9 brigades have had three tours, and two have had four).
In total, some 1.4 million U.S. military troops have served in Iraq or Afghanistan. Some 50,000 soldiers have been put under stop-loss orders, a measure that requires troops to remain deployed, despite the fact that their volunteer commitments have expired. The report cites an Army study that found that soldiers who serve more than one tour are 50 percent more likely to suffer from post-traumatic stress disorder, and that suicide rates among troops deployed to Iraq spiked in 2006.
Etc.: You're In the Army--For Now, on USNews.com