Interesting.
According to fellow soldier Specialist Jason Fry, Bergdahl was quiet: “He wasn’t one of the troublemakers – he was focused and well-behaved.” Bergdahl was more isolated from his fellow soldiers; for instance, rather than socializing with his peers during Thanksgiving, he preferred studying maps of Afghanistan. Bergdahl told Fry before their deployment to Afghanistan, “If this deployment is lame, I’m just going to walk off into the mountains of Pakistan”.
Bergdahl’s unit was sent to an outpost called Mest-Malak in Afghanistan to conduct counterinsurgency operations. Bergdahl began learning to speak Pashto, and, according to Fry, Bergdahl “began to gravitate away from his unit”, spending “more time with the Afghans than he did with his platoon”.
(Wikipedia)