The order of battle of invasion troops for OLYMPIC/MAJESTIC were 14 Divisions: 10 Army Infantry, 1 Airborne and 3 USMC equal 450,000 combat and support troops staged at Okinawa.

• United States
  • U.S. Sixth Army
    • Yakushima and Koshikijima Islands - 40th Infantry Division (22,000 men)
    • Tanegashima - 158th Infantry Regiment (7,600 men)
    • Miyazaki - U.S. I Corps (95,000 men):
      • 25th Infantry Division, 33d Infantry Division, 41st Infantry Division
    • Ariake - U.S. XI Corps (113,000 men):
      • 1st Cavalry Division, 43d Infantry Division, Americal Division, 112th Cavalry Regiment
    • Kushikino - U.S. V Amphib Corps (99,000 men):
      • 2nd Marine Div., 3d Marine Division, 5th Marine Division
    • 6th Army reserves - U.S. IX Corps (79,000 men):
      • 77th Infantry Division, 81st Infantry Division, 98th Infantry Division;
    • 11th Airborne Division (15,000 men)