The map has been published in History Revealed Magazine January 2015 Issue .
Of 20,000 Japanese soldiers, few survived the Battle of Iwo Jima in 1945, while the capture of the island cost the US Marines 25,000 casualties - a quarter of their entire losses in World War II
http://www.historyextra.com/history-revealed/issue/january-2015-1
The illustration was drawn using 3D gaphics programs to place basic structures and elements. Later it was hand drawn using photoshop and classic paper techniques and retouched. (Author: Fernando j. Sanchez Menendez)
