In which war did the most Marines die from wounds sustained?

The highest number of Marine casualties from wounds sustained occurred during World War II. This conflict was marked by intense and prolonged engagements in the Pacific Theater, where Marines faced challenging combat conditions, including fierce battles on islands such as Iwo Jima and Okinawa. The scale and brutality of these confrontations led to both significant numbers of wounded and fatalities among Marine forces.

In World War II, the Marine Corps played a crucial role in amphibious assaults and direct engagements against enemy forces, resulting in a higher casualty rate compared to other wars. This context highlights the difficulty and danger associated with the combat environments Marines faced during this time, making it a pivotal conflict in terms of Marine Corps history and sacrifice.

Understanding the historical context of Marine operations in each of these conflicts clarifies why World War II is recognized for the significant number of Marine casualties sustained from combat-related injuries.