Historical Branch, G-3 Division, Headquarters, U.S. Marine Corps
1955
| Chapter | Page | ||
| 1. | Background | 1 | |
| Strategic Situation | 1 | ||
| Historical Notes | 3 | ||
| Okinawa and the Okinawans | 6 | ||
| 2. | Planning ICEBERG | 12 | |
| Strategic Concepts | 12 | ||
| Command Relationships | 17 | ||
| Intelligence | 19 | ||
| Tactical Planning | 22 | ||
| Logistical Planning | 27 | ||
| 3. | Preparations for the Assault | 30 | |
| Training and Rehearsing | 30 | ||
| Mounting and Staging for the Assault | 34 | ||
| Preliminary Covering Strikes | 36 | ||
| Seizure of Kerama Retto | 38 | ||
| Prelanding Operations | 43 | ||
| 4. | Japanese Defensive Preparations | 48 | |
| The Thirty-Second Army | 49 | ||
| Strengthening the Defenses | 53 | ||
| Reinforcing the Army | 56 | ||
| Prelanding Dispositions | 59 | ||
| 5. | Seizure of the Beachhead | 63 | |
| L-Day | 63 | ||
| Severing the Island | 69 | ||
| Meeting the Enemy | 77 | ||
| Logistical Progress | 80 | ||
| Kamikaze | 82 | ||
| 6. | Action in the North | 87 | |
| Securing the Eastern Islands | 87 | ||
| 6th Marine Division Advances | 90 | ||
| Battle for Motobu Peninsula | 96 | ||
| Marines' "Guerrilla War" | 104 | ||
| Capture of Ie Shima | 111 | ||
| 7. | Developing the Shuri Defenses | 119 | |
| Penetrating the Outpost Line | 119 | ||
| Build-up in the South | 124 | ||
| Attack of 19 April | 126 | ||
| Assaulting the Second Defense Ring | 131 | ||
| 1st Marine Division Joins the XXIV Corps | 134 | ||
| 8. | IIIAC Enters the Lists | 142 | |
| Japanese Counterattack | 142 | ||
| The Battle Lines Are Drawn | 151 | ||
| Tenth Army Attacks | 160 | ||
| Logistical Progress | 172 | ||
| 9. | Reduction of the Shuri Bastion | 176 | |
| Sugar Loaf Hill | 176 | ||
| Wana Draw | 185 | ||
| Shuri Heights and Conical Hill | 192 | ||
| Struggle in the Rain | 196 | ||
| Japanese Withdrawal | 207 | ||
| 10. | Ushijima's Last Stand | 210 | |
| Breakout to the South | 210 | ||
| The Capture of Oroku Peninsula | 217 | ||
| Kunishi Ridge | 228 | ||
| Iheya-Aguni Operation | 243 | ||
| Yaeju Dake-Yuza Dake | 244 | ||
| End of Organized Resistance | 249 | ||
| 11. | Campaign Summary | 258 | |
| The Clean-up Drive | 258 | ||
| The Tenth Army's Air Force | 261 | ||
| Island Command Activities | 266 | ||
| Tactical Evaluation | 269 | ||
| Key to Conquest | 273 | ||
| Appendices | |||
| I. | Bibliography | 276 | |
| II. | Chronology | 281 | |
| III. | Command and Staff List of Marine Units on Okinawa | 284 | |
| IV. | III Amphibious Corps Task Organization | 298 | |
| V. | Japanese Order of Battle | 302 | |
| VI. | Marine Casualties | 305 | |
| VII. | Marine and Naval Corpsmen Medal of Honor Winners | 309 | |
| VIII. | Navy Unit Commendations | 313 | |
| Index | 316 | ||