Lt. Nakamura mentions that Minami Imo is near Iwo Jima. Aside from the strategic and tactical importance of capturing Iwo Jima for the airfield, one of the most iconic combat photos of all time, the six Marines raising the flag on Mount Suribachi, Iwo Jima, occurred on February 23, 1945, on the fourth day of the battle.
This episode takes place on Minami Imo off the coast of Iwo Jima on February 17, 1945 and in Arizona in 1968.