HistoryData
war1940

Naval engagement in the Red Sea during WWII

October 21, 1940

A minor Red Sea naval skirmish in which an Italian destroyer was lost while failing to damage a British convoy, illustrating the limits of divided Italian naval tactics.

Quick Facts

Year
1940
Category
war

Key Facts

Date
20–21 October 1940
Location
Red Sea, near Harmil Island
Italian destroyers lost
1 (Francesco Nullo, beached)
Merchant ships damaged
1 (slightly)
British ships disabled
HMS Kimberley, hit by shore batteries
British rescue vessel
HMS Leander towed Kimberley to safety

By the Numbers

20
Date
1
Italian destroyers lost
1
Merchant ships damaged

Location

Map of EritreaMap of EritreaEritrea

Cause → Event → Consequence

Cause

Italian naval forces in the Red Sea sought to interdict British merchant convoys supplying Allied operations. They deployed a flotilla of destroyers in two separate groups to improve interception chances against Convoy BN 7, though this division sacrificed the concentration of force needed to overcome the British escorts.

Event

On the night of 20–21 October 1940, Italian destroyers attacked Convoy BN 7 but failed to sink any merchant vessels, causing only slight damage to one ship. HMS Kimberley torpedoed the destroyer Francesco Nullo, which was beached on Harmil Island. Italian shore batteries on the island then hit and disabled Kimberley.

Consequence

The Italian attack achieved no meaningful result and cost them the destroyer Francesco Nullo. HMS Kimberley was towed to safety by HMS Leander. British command at Aden criticised the escorts for insufficient aggression. Italy mounted further unsuccessful sorties in December 1940 and January 1941, none of which disrupted British convoy operations.

Belligerents & Mobilization Analysis

Side A

1 belligerent

United Kingdom

Side B

1 belligerent

Italy
Outcome
British victory: convoy largely undamaged; Italian destroyer Francesco Nullo lost; HMS Kimberley disabled but salvaged.

Timeline Context

Timeline around 19401940193719381939194119421943The Holocaust in Poland — genocide of Jews in Nazi-occupied Poland during World War IISecond and final stage of the 1947–1949 Palestine war1947–1948 Civil War in Mandatory Palestine — civil war between the Jewish and Arab communities of Palestine which is the first phase of the 1948 Palestine WarKatyn massacre — Soviet mass murder of ca. 22,000 Poles in several parts of European Russia, including in the Katyn forest, which became a pars pro toto name for the whole massacreOperation Weserübung — 1940 code name for Germany's assault on Denmark and Norway during the Second World War1940s — decade of the Gregorian calendar (1940–1949)Battle of Britain — air battle waged between German and British air forces in 1940First war of the Arab–Israeli conflictattack-on-convoy-bn-7-1940