"Casualties of War" refers to the impact of war on both military personnel and civilians, highlighting the physical and psychological toll of conflict. In the context of the film, it specifically addresses the moral and ethical dilemmas faced by soldiers during the Vietnam War, particularly the consequences of their actions on innocent lives. The term encapsulates the broader idea that war results in loss beyond just the battlefield, affecting human dignity and moral integrity. The film explores these themes through the harrowing story of a war crime.

"Casualties of War," directed by Brian De Palma, is often praised for its realistic portrayal of the Vietnam War, particularly its focus on the moral complexities and horrors faced by soldiers. Based on a true story, the film depicts the harrowing events surrounding a gang rape of a Vietnamese girl by American soldiers, highlighting the brutalities and ethical dilemmas of war. While there are several films that depict the Vietnam War realistically, "Casualties of War" stands out for its unflinching examination of the psychological and moral impacts of combat.

"Casualties of War" was primarily filmed in Thailand. The lush landscapes and jungles of Thailand served as a stand-in for Vietnam, where the story is set during the Vietnam War. Key filming locations included areas around the city of Kanchanaburi and the nearby Erawan National Park, which provided the natural scenery necessary to depict the war-torn environment. The production utilized local resources and talent, contributing to the film's authentic atmosphere.

In the movie "Casualties of War," innocent victims of war, particularly those who suffer due to the actions of soldiers, are often referred to as "collateral damage." This term is used to describe unintended harm or deaths that occur during military operations, emphasizing the tragic consequences of war on civilians. The film, directed by Brian De Palma and based on a true story, explores the moral complexities and ethical dilemmas faced by soldiers during the Vietnam War, highlighting the impact of their actions on innocent lives.