[Combat stress reaction][1]Combat stress reaction (CSR) is a term used within the military to describe acute behavioural disorganization seen by medical personnel as a direct result of the trauma of war.
Also known as "combat fatigue" or "battle neurosis", it has some overlap with the diagnosis of acute stress reaction used in civilian psychiatry. It is historically linked to shell shock and can sometimes precurse post-traumatic stress disorder.
Reference:
https://en.wikipedia.org/wiki/Combat_stress_reaction
[1]: https://en.wikipedia.org/wiki/Combat_stress_reaction