Approximately how many Marines were killed on the island of Iwo Jima?

The correct answer is that approximately 5,931 Marines were killed on the island of Iwo Jima during the fierce battle that took place from February 19 to March 26, 1945. This battle was one of the most significant engagements in the Pacific Theater of World War II and was marked by intense fighting and high casualties.

The number reflects the heavy toll that the Marine Corps faced while attempting to capture the strategically important island, which was crucial for providing a base for air operations against the Japanese mainland. The immense loss of life underscores the brutality of combat in this conflict and highlights the valor of the Marines as they fought to secure the island, which included entrenched Japanese forces well-prepared for resistance.

The figures associated with the other options do not accurately represent the historical record, as they either overstate or understate the number of Marines lost during this specific battle.