Okinawa
Iwo Jima was the largest Marine Corps operation supported by some Army units, and the Philippines was the Army’s supported by Marine units. Okinawa was the largest battle of the Pacific and involved both in equal numbers, and at one point the whole landing force was controlled by a Marine General. Roy Gieger commanded more troops than any other Marine previous.
1st, 2nd and 6th Marine Tank Battalions were used as the supporting armor. Unlike Iwo Jima they were never combined or under a central control. On Okinawa one of the main tactics was to use tanks as ambulances. The vehicle would drive on top of the wounded infantry and open the escape hatches and pull them in to prevent further wounds.