Internal Conflict

"...Dave Jensen started to worry. It was mostly in his head. There were no threats, no vows of revenge, just a silent tension..." Page 59 and 60

In contrast to the previous external conflict, O'Brien next describes an internal conflict of one of the previously mentioned characters. Dave Jensen became paranoid. The writer states that it was mainly in his head. This is a perfect example of an internal conflict. I'm sure an argument was constantly raging in Dave's head. Lee was his fellow soldier and duty came first. He wouldn't try anything. But then again, Dave hurt him so badly that he had to be choppered away for medical attention. The circumstances were split. I doubt that Dave was in any danger from Lee, but he convinced himself that an attack was possible. He didn't know who he could trust. O'Brien utilizes this to show that war made people insane at points. It messed with their heads.