Casualties refer to individuals who are injured or killed in an event, often related to military conflicts, accidents, or disasters. This term encompasses both fatalities and injuries, highlighting the impact of such events on human life. Casualties can occur in various situations, including wars, natural disasters, and traffic accidents. In military contexts, casualties are often categorized as combat casualties (those injured or killed in battle) and non-combat casualties (those affected by accidents or illness). Understanding casualties helps in assessing the severity of an event and planning for medical and humanitarian responses.