Throughout history, soldiers have proved averse to killing their enemies.
Soldiers are expected to spend months or years fighting and killing, then return to the U.S. as stable, well-adjusted citizens, spouses, and parents. The challenge, then, is achieving balance between the training that will enable soldiers to survive battle and the skills that will help them reacclimate to civilian life. Advocates of the CSF2 program point out that some people who undergo trauma experience what they call "post-traumatic growth." So instead of allowing the experience of combat to lead them down a self-destructive path, soldiers could use the trauma as a motivating event, a reason to grapple with family or personal issues they may have had before ever going to war. If it works, CSF2 should, ideally, enable soldiers to leave the battlefield in better shape than when they went in.