Post-traumatic stress disorder (PTSD): A psychological disorder that can develop after experiencing or witnessing a traumatic event like war. It is characterized by intrusive memories, nightmares, flashbacks, and heightened anxiety.
Shell shock: A term used during World War I and World War II to describe a psychological condition experienced by soldiers exposed to intense combat situations. It is now recognized as an early understanding of what we now know as PTSD.
Propaganda: During the war era, propaganda was widely used by governments to shape public opinion and influence behavior. It played a role in shaping perceptions of mental health issues among soldiers and civilians alike.