Bowe Bergdahl was discharged from the coast guard in 2006, a few weeks after he joined. This graph shows the number of coast guard recruits each year since 2001 and the percentage of recruits who were discharged within six months.
When Bowe Bergdahl went to enlist in the army in 2008, he had to explain a previous discharge from the Coast Guard and get a waiver. This graphic shows the number of waivers approved from 2001 to the present.
Jason Dempsey on the counterinsurgency—COIN—mission and the end game in Afghanistan. Dempsey, who was an officer at the battalion and brigade level, did tours in Iraq and Afghanistan. He has served as a combat advisor to the Afghans and has taught at West Point. He was in Afghanistan when Bowe Bergdahl was captured and went back again in 2012 and 2014.
Bowe Bergdahl said he planned to cause a DUSTWUN by leaving his outpost, OP Mest, and running—or at least walking—to his base, FOB Sharana. This map (push play to fly over the area) gives a sense of the terrain he would have had to cross.