U.S. Marines raised an American flag on the Japanese island’s highest peak exactly 80 years ago. But the fighting, some of the deadliest of World War II, would rage on for a month.

The battle for Iwo Jima would rage for another month. Of the 110,000 U.S. soldiers, sailors, and pilots who fought on that volcanic outpost, a staggering 26,000 would be killed or injured.