This month, I chose to look at a map of Iwo Jima on the 75th anniversary of the day the island was declared officially secured by American forces (March 26). I created a 10 minute video overview of a “secret” map that was created just a few months before the battle, and may have been used while planning the invasion of the island. An image of the map is available below, and the link to the video can be found below that.