9/11: The Pentagon

On September 11, 1941, the U.S. War Department broke ground on a new headquarters that would rise to become the ultimate symbol of the American military. Sixty years after construction began, a hijacked airliner crashed into the building. On September 11, 1941, the U.S. War Department broke ground on a new headquarters that would rise to become the ultimate symbol of the American military. Sixty years after construction began, a hijacked airliner crashed into the building. On September 11, 1941, the U.S. War Department broke ground on a new headquarters that would rise to become the ultimate symbol of the American military. Sixty years after construction began, a hijacked airliner crashed into the building. On September 11, 1941, the U.S. War Department broke ground on a new headquarters that would rise to become the ultimate symbol of the American military. Sixty years after construction began, a hijacked airliner crashed into the building.