10 things you didn't know about one of the Marine Corps' most ferocious battles: Iwo Jima

The Marines will be the first to tell you they have "fought in every clime and place" from the "halls of Montezuma to the shores of Tripoli."

The history of the Corps is steeped in legendary heroism and ferocious battles. From Chapultepec to Belleau Wood to Fallujah, the Marines have made a name for themselves throughout our country's history.

But there is one battle that stands out. Iwo Jima.