Combat fatigue and Shell shock

Combat fatigue noun - A mental disorder caused by stress of active warfare.

Shell shock is a synonym for combat fatigue. In some cases you can use "Shell shock" instead a noun phrase "Combat fatigue".

Shell shock noun - A mental disorder caused by stress of active warfare.

Combat fatigue is a synonym for shell shock in battle fatigue topic. You can use "Combat fatigue" instead a noun phrase "Shell shock".