Hacker News with Generative AI: Combat

Soldiers in combat can kill without moral injury (bps.org.uk)
Killing another person is not necessarily harmful to a soldier's mental health — in fact, the impacts on wellbeing depend more on the context than on the act itself. At least, this is the conclusion of a large-scale study of Norwegian soldiers, led by Andreas Espetvedt Nordstrand of Institute of Military Psychiatry, Norwegian Armed Forces, Norway.
Analysis of Greek prehistoric combat in full body armour based on physiology (plos.org)