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==Raid==
==Raid==

{{Primary sources|section}}

On 19 December, ''Scirè''—at a depth of {{convert|15|m|ft|abbr=on}}—released the manned torpedoes {{convert|1.3|mi|nmi km|lk=on|abbr=on}} from Alexandria commercial harbour,<ref>Borghese, page 143</ref> and they entered the naval base when the British opened their defenses to let three of their destroyers pass. There were many difficulties for de la Penne and his crewmate Emilio Bianchi. First, the engine of the torpedo stopped and the two frogmen had to manually push it; then Bianchi had to surface due to problems with the oxygen provider, so that de la Penne had to push the ''maiale'' alone to where {{HMS|Valiant|1914|6}} lay. There he successfully placed the [[limpet mine]], just under the hull of the battleship. However, as they both had to surface, and as Bianchi was hurt, they were discovered and captured.{{Citation needed|date = December 2016}}
On 19 December, ''Scirè''—at a depth of {{convert|15|m|ft|abbr=on}}—released the manned torpedoes {{convert|1.3|mi|nmi km|lk=on|abbr=on}} from Alexandria commercial harbour,<ref>Borghese, page 143</ref> and they entered the naval base when the British opened their defenses to let three of their destroyers pass. There were many difficulties for de la Penne and his crewmate Emilio Bianchi. First, the engine of the torpedo stopped and the two frogmen had to manually push it; then Bianchi had to surface due to problems with the oxygen provider, so that de la Penne had to push the ''maiale'' alone to where {{HMS|Valiant|1914|6}} lay. There he successfully placed the [[limpet mine]], just under the hull of the battleship. However, as they both had to surface, and as Bianchi was hurt, they were discovered and captured.{{Citation needed|date = December 2016}}



Revision as of 22:32, 1 February 2020

Raid on Alexandria
Part of the Battle of the Mediterranean of World War II

An Italian manned torpedo
Date19 December 1941 (1941-12-19)
Location
Result Decisive Italian victory
Belligerents
 United Kingdom  Italy
Commanders and leaders
Charles Morgan
Strength
Fleet in harbour
Casualties and losses
  • 2 battleships disabled
  • 1 destroyer damaged
  • 1 tanker damaged
  • 8 crewmen killed[1]
6 crewmen captured

The Raid on Alexandria was carried out on 19 December 1941 by Italian Navy divers of the Decima Flottiglia MAS, who attacked and disabled two Royal Navy battleships in the harbour of Alexandria, Egypt, using manned torpedoes.

Background

On 3 December, the submarine Scirè of the Italian Royal Navy (Regia Marina) under the command of lieutenant Junio Valerio Borghese left the naval base of La Spezia carrying three manned torpedoes, nicknamed maiali (pigs) by the Italians.[2] At the island of Leros in the Aegean Sea, the submarine secretly picked up six crewmen for them: Luigi Durand de la Penne and Emilio Bianchi (maiale nº 221), Vincenzo Martellotta and Mario Marino (maiale nº 222), and Antonio Marceglia and Spartaco Schergat (maiale nº 223).[3]

Raid

On 19 December, Scirè—at a depth of 15 m (49 ft)—released the manned torpedoes 1.3 mi (1.1 nmi; 2.1 km) from Alexandria commercial harbour,[4] and they entered the naval base when the British opened their defenses to let three of their destroyers pass. There were many difficulties for de la Penne and his crewmate Emilio Bianchi. First, the engine of the torpedo stopped and the two frogmen had to manually push it; then Bianchi had to surface due to problems with the oxygen provider, so that de la Penne had to push the maiale alone to where HMS Valiant lay. There he successfully placed the limpet mine, just under the hull of the battleship. However, as they both had to surface, and as Bianchi was hurt, they were discovered and captured.[citation needed]

Questioned, both of them kept silent, and they were confined in a compartment aboard Valiant, below the water line, and coincidentally just over the place where the mine had been placed. Fifteen minutes before the explosion, de la Penne asked to meet with Valiant's captain Charles Morgan and then told him of the imminent explosion but refused to give further information, so that he was returned to the compartment. When the mine exploded just beneath them, neither was severely injured by the blast, de la Penne only receiving a minor injury to the head from a ship chain.[5]

Meanwhile, Marceglia and Schergat had attached their device five feet beneath the battleship HMS Queen Elizabeth's keel as scheduled. They successfully left the harbour area at 4:30 am, and slipped through Alexandria posing as French sailors. They were captured two days later at Rosetta by the Egyptian police while awaiting rescue by Scirè and handed over to the British.[6]

Martellotta and Marino searched in vain for an aircraft carrier purportedly moored at Alexandria, but after some time they decided to attack a large tanker, the 7,554 gross register ton Norwegian Sagona. Marino fixed the mine under the tanker's stern at 02:55. Both divers managed to land unmolested, but were eventually arrested at an Egyptian police checkpoint.[7]

In the end, all the divers were made prisoners, though they succeeded in severely damaging both Queen Elizabeth and Valiant, disabling them for nine months and six months respectively.[8] Eight members of Queen Elizabeth's crew were killed.[9] Sagona lost her stern section and the destroyer HMS Jervis, one of four alongside her refuelling, was badly damaged. Neither of the two capital ships sank but they were out of action for several months.[10][11]

Aftermath

This represented a dramatic change of fortunes against the Allies from the strategic point of view during the next six months. The Italian fleet had temporarily wrested naval supremacy in the east-central Mediterranean from the Royal Navy.[12][13][14][15]

Valiant was towed to Admiralty Floating Dock 5 on the 21st for temporary repairs and was under repair at Alexandria until April 1942 when she sailed to Durban. By August, she was operating with Force B off Africa in exercises for the defence of East Africa and operations against Madagascar.[16]

Queen Elizabeth was in drydock at Alexandria for temporary repairs until late June, when she sailed for the United States for refit and repairs, which ended the following June. The refit was completed in Britain.[17]

Jervis was repaired and operational again by the end of January.[18]

In media

The attack is dramatised at the beginning of the film The Silent Enemy (1958). Another movie The Valiant (1962), is about the damage to HMS Valiant in Alexandria harbour.[19] There is also a 1953 Italian movie (I sette dell'Orsa Maggiore) about the attack.[20]

See also

Notes

  1. ^ Naval-History.net
  2. ^ Borghese, page 135
  3. ^ Borghese, pp. 134–136
  4. ^ Borghese, page 143
  5. ^ Borghese, pp. 148–151
  6. ^ Borghese, pp. 152–153
  7. ^ Borghese, pp. 155–156
  8. ^ Sadkovich, page 217
  9. ^ "Royal Navy casualties, killed and died, December 1941". www.naval-history.net. Retrieved 29 December 2016.
  10. ^ Burt, pp.120–121: "Prior to the attack Queen Elizabeth had a draught of 33ft 5in forward and 32ft 7in aft; after the explosion: draught 41ft 10in forward, 33ft 10in aft." Queen Elizabeth was moored in approximately 48ft (8 fathoms) of water.
  11. ^ Brown, David. p. 225.
  12. ^ "Consequently, the Alexandria Fleet remained for many months without any battleships, and it was forced to abandon any further open activity. In fact, Admiral Cunningham wrote that his Fleet now ′should have to leave it to the Royal Air Force to try if they could dispute the control of the Central Mediterranean with the enemy's fleet.′(...) In fact, it opened a period of clear Italian naval supremacy in the east-central Mediterranean." Bragadin, page 152
  13. ^ "Overnight, the sea had became an Axis lake. And the Italian Navy held dominating power." Schofield, Williams, and Carisella, P. J. (2004). Frogmen:First Battles. Branden Books, p. 134. ISBN 0-8283-2088-8
  14. ^ "The results of the attack would not be immediately known, but details would slip out in the coming weeks. The balance of power at sea had shifted." Greene, Jack & Massignani, Alessandro (1998). The Naval War in the Mediterranean, 1940–1943, Chatam Publishing, p. 204. ISBN 978-1-86176-057-9
  15. ^ Sadkovich, p. 219
  16. ^ HMS Valiant at naval-history.net
  17. ^ HMS Queen Elizabeth at naval-history.net
  18. ^ HMS Jervis at naval-history.net
  19. ^ The Silent Enemy at IMDb
  20. ^ "Hell Raiders of the Deep". IMDb.com. Retrieved 19 December 2016.

References

  • "Sea Devils" by J. Valerio Borghese, translated into English by James Cleugh, with introduction by the United States Naval Institute ISBN 155750072X
  • The Italian Navy in World War II by Marc'Antonio Bragadin, United States Naval Institute, Annapolis, 1957. ISBN 0405130317
  • "The Black Prince and the Sea Devils: The Story of Valerio Borghese and the Elite Units of the Decima Mas", by Jack Greene and Alessandro Massignani, Cambridge, Massachusetts: Da Capo Press, 2004, 284 pages, hardcover. ISBN 0306813114
  • Brown, David (2002). The Royal Navy and the Mediterranean: November 1940 – December 1941, Volume II. Frank Cass Publishers. ISBN 0714652059.
  • Burt, RA (2012). British Battleships 1919–1945. Seaforth Publishing. ISBN 9781848321304.
  • O'Hara, Vincent P.; Cernuschi, Enrico (Summer 2015). "Frogmen against a Fleet: The Italian Attack on Alexandria 18/19 December 1941". Naval War College Review. 68 (3): 119–137. Archived from the original on 12 February 2017. Retrieved 17 August 2015.
  • The Italian Navy in World War II by Sadkovich, James, Greenwood Press, Westport, 1994. ISBN 031328797X
  • "Frogmen: First Battles" by William Schofield, P. J. Carisella & Adolph Caso, Branden Books, Boston, 2004. ISBN 0828320888

31°10′43.71″N 29°51′44.89″E / 31.1788083°N 29.8624694°E / 31.1788083; 29.8624694