| Preface | ix |
| Abbreviations | xxix |
I | Introduction, September 1939-April 1943 | 3 |
II | Tenth Fleet, March-September 1943 | 12 |
1. | American and British Antisubmarine Commands | 12 |
2. | Tenth Fleet Emerges, April-May | 21 |
3. | The Navy-Air Force "Horse Trade," August-September | 26 |
| Notes on the Navy-Air Force Controversy | 29 |
III | New Antisubmarine Ships and Aircraft | 32 |
1. | The Destroyer Escorts | 32 |
2. | The Escort Carriers | 37 |
3. | Antisubmarine Aircraft | 42 |
IV | New Training and Technical Developments | 47 |
1. | The "Antisubmarine University" | 47 |
2. | Technical Developments | 52 |
V | The German Underwater Fleet, 1943-1945 | 55 |
1. | Hitler, Raeder and Doenitz | 55 |
2. | German Submarine Construction | 60 |
| Note on Italian Submarines | 64 |
VI | Northern Transatlantic Convoys, April-May 1943 | 65 |
1. | The Ordeal of ONS-5 | 65 |
2. | Debut of the Escort Carrier Group | 76 |
VII | Ushant to Finisterre, 1943 | 85 |
1. | Coastal Command and Army Air Force | 85 |
2. | The Bay Offensive, March-June | 89 |
3. | "Madcats" and B-24s in the Big Slaughter, 20 July-2 August | 93 |
4. | PB4Ys in the Bay Offensive, August-December | 99 |
VIII | The Central Atlantic and Azores, May-August 1943 | 108 |
1. | CVEs, Supporting Convoys and on the Loose, May-June | 108 |
2. | The Azores Happy Hunting Ground, July-August | 116 |
3. | Finisterre to Cape Juby, July-August | 129 |
IX | North Atlantic Crossings, September-November 1943 | 133 |
1. | Troop and Tanker Convoys to Britain | 133 |
2. | The Zaunkonig Blitz on Convoy ON-202 | 135 |
3. | The Blitz Fizzles Out, October-November | 146 |
X | The Central Atlantic Grind, October-December 1943 | 153 |
1. | Central Atlantic Convoys | 153 |
2. | Card and Core Score Four, 3-20 October | 159 |
3. | Borie's Last Battle, 1-2 November | 162 |
4. | Bogue Gets Four More, November-December | 168 |
5. | Card Scores Again, but Loses Leary, 17-25 December | 171 |
XI | East Coast and Caribbean, April-December 1943 | 178 |
1. | Eastern Sea Frontier "Nuisances," April-July | 178 |
2. | Mining Offensive, June-October | 184 |
3. | Caribbean Blitz, July-August | 188 |
4. | Panama Run-around, October-December | 198 |
XII | South Atlantic, May 1943-January 1944 | 208 |
1. | Fourth Fleet | 208 |
2. | Nuisances and Precursors, May-June | 210 |
3. | July Blitz off Brazil | 215 |
4. | Air and Patrol Battles around Ascension, September-December | 223 |
XIII | In Arctic Waters, May-December 1943 | 229 |
1. | High Jinks in High Latitudes | 229 |
2. | North Russia Run Reopened, November-December | 233 |
3. | The Sinking of Scharnhorst, 26 December | 236 |
4. | General Conclusions for 1943 | 244 |
XIV | Within the Mediterranean, June 1943-August 1944 | 249 |
1. | The Mediterranean Convoy System | 249 |
2. | U-boats "Swamped," July 1943-May 1944 | 252 |
3. | Air Attacks on Convoys, September-November 1943 | 261 |
4. | Intense Air-Surface Battles, April-August 1944 | 264 |
XV | Southern and Far Eastern Waters, 1943-1945 | 274 |
1. | Passage to Penang, February 1943-March 1944 | 274 |
2. | Escort Carriers off Cape Verdes and Madeira, March-April 1944 | 278 |
3. | Buckley's Battle; Loss of Block Island, May | 284 |
4. | The Capture of U-505, June 4, 1944 | 290 |
5. | Fourth Fleet Interlude, February-September | 293 |
6. | Caribbean Conclusion, March-July 1944 | 297 |
7. | South Atlantic and Indian Ocean, June 1944-May 1945 | 298 |
XVI | In Arctic Waters, 1944-1945 | 305 |
1. | Renewed German Activity, January 1944 | 305 |
2. | British CVEs on the North Russia Run, February-December 1944 | 307 |
3. | Concluding North Russia, February-May 1945 | 310 |
XVII | Snorkels in the Atlantic, March-December 1944 | 317 |
1. | Doenitz Springs the Snorkel | 317 |
2. | The U-boats and Overlord, June-August | 319 |
3. | Snorkel Nuisances, August-December | 325 |
XVIII | Snorkel Blitz in European Waters, December 1944-April 1945 | 330 |
1. | U-boats Help Battle of the Bulge | 330 |
2. | Snorkels in British Coastal Waters, February-April | 338 |
XIX | Victory in the Atlantic, February-May 1945 | 342 |
1. | Snorkels in the Eastern Sea Frontier, February-April | 342 |
2. | Teardrop vs. "Seewolf," March-May | 344 |
3. | Battle off Block Island, 5-6 May | 356 |
4. | Surrender and Conclusion | 358 |
Appendix I | Losses of Merchant Shipping, and Enemy Submarines | 365 |
1. | Monthly Losses of Allied and Neutral Merchant Vessels to Submarine Attack | 365 |
2. | U-Boats Built, Operating and Sunk Monthly | 366 |
3. | Monthly Losses of Allied and Neutral Vessels by All Causes, World-Wide | 367 |
4. | Ocean Areas of Heaviest Monthly Merchant Shipping Losses by Submarine Attack | 369 |
Appendix II | Sinkings of German, Italian and Japanese Submarines by U.S. Forces in Arctic, Atlantic and Mediterranean | 370 |
Appendix III | Mine Fields Laid by U-boats in Western Atlantic | 374 |
Appendix IV | Task Organization of U.S. Navy Escort Carrier Groups Operating in the Atlantic, 1943-1945 | 375 |
Appendix V | Composition of Convoy UGS-40 under Air Attack in the Mediterranean, 11 May 1944 | 381 |
| Index | 383 |