Some of the traumatic things you were exposed to probably got better over time, however sometimes there can be events you don't recover from as expected. Instead, you may feel stuck. You may even go on to develop PTSD. Being a combat vet you were trained to be ready for the unexpected. When the unexpected happened, your training kicked in and you did your job to the best of your ability often without even thinking. But what do you do when the unexpected injured you or one of your brothers? Or took their life? There's not really any good place to process this stuff while in combat- it's onto the next mission. While this makes sense to keep you focused, it takes it's toll over time. You stuff it down, and keep going because that is what you have to do.