This is usually why soldiers end up with PTSD

This is not the only way people end up with PTSD.

Most of the time, this is.

This is not the only way people end up with PTSD

Most of the time, this is. While some people run from danger, others run toward it because some needs help.  No one knew if other bombs would blow up.  All these folks cared about was someone was suffering.

This is usually why soldiers end up with PTSD.

Yuri Kozyrev / Noor for TIME. #6. Protection U.S. soldiers shield a wounded comrade from debris kicked up by a rescue helicopter during fighting in Qubah,

They care so much for each other, they are will to die. They expose themselves to the prospect of death on a daily basis while deployed. That can cause PTSD. The deepest wounds come because they care more about the others they are with, than for themselves.