What was the primary psychological effect on soldiers described as "battle fatigue"?

The term "battle fatigue," which later became known as combat stress or post-traumatic stress disorder (PTSD), primarily refers to the emotional and mental breakdowns experienced by soldiers during or after intense combat situations. This condition commonly arises from the cumulative stress of warfare, including exposure to life-threatening situations, witnessing violence, and the psychological toll of sustained conflict. Soldiers suffering from battle fatigue often exhibit symptoms such as anxiety, depression, irritability, and detachment from their surroundings, which can significantly impair their ability to function effectively both in combat and after returning home.

While physical injuries, intense fear of combat, and confusion can undoubtedly affect soldiers, the term specifically highlights the psychological challenges that come from the emotional strain of warfare, which aligns with the selection made. Understanding this distinction helps to emphasize the critical need for mental health support and recognition of the psychological impacts of military service.