The documentary clip below focuses (at least early on) with the Battle of midway.
Note the importance of 1.) American airpower and 2.) the Navy's aircraft carriers in delivering that firepower.
The two video documentaries are short--about 9 to 10 minutes each. They are from the "exhaustive" series, "The World at War." The first deals specifically with battle for Iwo Jim, the second with Okinawa.
The documentary below is one of my favorite discussions regarding civilians as legitimate military targets. The main figure is Robert McNamara (later the Secretary of Defense through much of Vietnam) and his commander in Japan, General Curtis LeMay. The clip is from the highly recommended documentary, "The Fog of War" by Errol Morris.
