How the US's massive bombardment of Iwo Jima during World War II made capturing the island from Japan even tougher

U.S. Marine Corps Photo During the hell that was World War II, the US conducted 72 straight days of vicious bombing raids on the island of Iwo Jima to gain access. America did everything within their power to weaken Japanese forces before sending ground troops in to secure the rest of island for allied use. Although US forces bombed the crap out of the island, one aspect of their strategy may have been overlooked in a big way.See the rest of the story at Business Insider NOW WATCH: Step aboard t...