First actions On 10 June 1940,
Italy declared war on Britain and
France. The following day,
Italian bombers attacked Malta on what was to be the first of many raids. France's
Marine Nationale shelled a number of targets on the northwestern coast of Italy, in particular the port of
Genoa. When
France surrendered on 24 June, the Axis leaders allowed the new Vichy French government to retain its navy. The first clash between the rival fleets in the
Battle of Calabria, took place on 9 July, four weeks after the start of hostilities. This was inconclusive, and concurrent with a series of small surface actions during the summer, among them being the
Battle of the Espero convoy and the
Battle of Cape Spada.
Battle of Taranto To reduce the threat posed by the
Italian fleet, which was based in the port of
Taranto, to convoys sailing to Malta, Admiral Cunningham organised an attack code-named
Operation Judgement.
Fairey Swordfish torpedo bombers from attacked the Italian fleet on 11 November 1940 while it was still at anchor. This was the first time that an attack such as this had been attempted and it was studied by Japanese naval officers in preparation for the later
attack on Pearl Harbor. British
Fleet Air Arm aircraft badly damaged two Italian
battleships and a third was forced to run aground to prevent her sinking, putting half of the
Regia Marinas major ships out of action for several months. This attack also forced the Italian fleet to move to Italian ports further north so as to be out of range of carrier-based aircraft. This reduced the threat of Italian sallies attacking Malta-bound convoys. Cunningham's estimate that Italians would be unwilling to risk their remaining heavy units was quickly proven wrong. Only five days after Taranto,
Inigo Campioni sortied with two battleships, six cruisers and 14 destroyers to disrupt a
British aircraft delivery operation to Malta. Furthermore, as early as 27 November, the Italian fleet was able to confront the Mediterranean fleet again in the indecisive
Battle of Cape Spartivento. Two of the three damaged battleships were repaired by mid-1941 and control of the Mediterranean continued to swing back and forth until the Italian armistice in 1943. Measured against its primary task of disrupting Axis convoys to Africa, the Taranto attack had little effect. In fact, Italian shipping to Libya increased between the months of October 1940 – January 1941 to an average of 49,435 tons per month, up from the 37,204-ton average of the previous four months. Moreover, rather than change the balance of power in the central Mediterranean, British naval authorities had "failed to deliver the true knockout blow that would have changed the context within which the rest of the war in the Mediterranean was fought."
Battle of Cape Matapan The
Battle of Cape Matapan was fought off the coast of the
Peloponnese in southern
Greece from 27 to 29 March 1941 in which Royal Navy and
Royal Australian Navy forces—under the command of the British Admiral
Andrew Cunningham—intercepted those of the Italian
Regia Marina under Admiral
Angelo Iachino. The Allies sank the
heavy cruisers , and and the
destroyers
Vittorio Alfieri and
Giosue Carducci, and damaged the battleship . The British lost one torpedo plane and suffered light splinter damage to some cruisers from
Vittorio Venetos salvoes. The factors in the Allied victory were the effectiveness of aircraft carriers, the use of
Ultra intercepts and the lack of radar on the Italian ships.
Fall of Crete The effort to prevent German troops from reaching
Crete by sea, and subsequently the partial evacuation of Allied land forces after their defeat by German paratroops in the
Battle of Crete during May 1941, cost the Allied navies a number of ships. Attacks by German planes, mainly
Junkers Ju 87s and
Ju 88s, sank eight British warships: two light cruisers ( and ) and six destroyers (, , , , and ). Seven other ships were damaged, including the battleships and and the light cruiser . Nearly 2,000 British sailors died. It was a significant victory for the
Luftwaffe, as it proved that the Royal Navy could not operate in waters where the German Air Force had air supremacy without suffering severe losses. In the end, however, this had little strategic meaning, since the attention of the
German Army was directed toward Russia (in
Operation Barbarossa) a few weeks later, and the Mediterranean was to play only a secondary role in German war planning over the following years. The action did, however, extend the Axis reach into the eastern Mediterranean, and prolong the threat to Allied convoys. Two attempts were carried out to transport German troops by sea in
caïques, but both of them were disrupted by Royal Navy intervention. The tiny Italian naval escorts, however, managed to save most of the vessels. Eventually, the Italians landed a force of their own near
Sitia on 28 May, when the Allied withdrawal was already ongoing. During the evacuation, Cunningham was determined that the "Navy must not let the Army down." When army generals stated their fears that he would lose too many ships, Cunningham said that "It takes three years to build a ship, it takes three centuries to build a tradition." Despite advance warning through
Ultra intercepts, the Battle of Crete resulted in a decisive defeat for the Allies. The invasion took a fearful toll of the German paratroops, who were dropped without their major weapons, which were delivered separately in containers. So heavy were the losses that General
Kurt Student, who commanded the German invasion, would later say, referring to the German decision not to use parachutists in any future invasion attempts: "Crete was the grave of the German parachutists."
The balance shifts After the battle of Crete in the summer of 1941, the Royal Navy regained its ascendancy in the central Mediterranean in a series of successful convoy attacks, (including the
Duisburg convoy and
Cap Bon), until the
Raid on Alexandria in December swung the balance of power towards the Axis. The
Regia Marinas most successful attack on the British Fleet was when divers attached
limpet mines on the hulls of British battleships during the Raid on Alexandria on 19 December 1941. The battleships and were sunk at their berths, but they were both raised and returned to active service by mid 1943.
Relief of Malta Malta's position between
Sicily and North Africa was perfect to interdict Axis supply convoys destined for North Africa. It could thus influence the campaign in North Africa and support Allied actions against Italy. The Axis recognised this and made great efforts to neutralise the island as a British base, either by air attacks or by starving it of its own supplies. After a series of hard-fought convoy battles, all of them Axis victories (such as the
Second Battle of Sirte in March and operations
Harpoon and
Vigorous in June), it looked as if the island would be starved into submission by the use of Axis aircraft and warships based in Sicily, Sardinia, Crete and North Africa. A number of
Allied convoys were decimated. The turning point in the siege came in August 1942, when the British sent a very heavily defended convoy under the codename
Operation Pedestal. Malta's air defence was repeatedly reinforced by
Hawker Hurricane and
Supermarine Spitfire fighters flown to the island from and other Allied aircraft carriers. The situation eased as Axis forces were forced away from their North African bases and eventually Malta could be resupplied and become an offensive base once again. The British re-established a substantial air garrison and offensive naval base on the island. With the aid of
Ultra, Malta's garrison was able to disrupt Axis supplies to North Africa immediately before the
Second Battle of El Alamein. For the fortitude and courage of the Maltese people during the siege, the island was awarded the
George Cross. The Royal Navy and the
RAF sank 3,082 Axis merchantmen in the Mediterranean, amounting to over 4 million tons. In September 1943, with the Italian collapse and the surrender of the Italian fleet, naval actions in the Mediterranean became restricted to operations against U-boats and by small craft in the
Adriatic and
Aegean seas.
Italian armistice On 25 July 1943, the
Grand Council of Fascism ousted Mussolini. A new Italian government, led by
King Victor Emmanuel III and Marshal
Pietro Badoglio, immediately began secret negotiations with the Allies to end the fighting. On 3 September, a secret
armistice was signed with the Allies at Fairfield Camp in Sicily. The armistice was announced on 8 September. After the armistice, the Italian Navy was split in two. In southern Italy, the "
Co-Belligerent Navy of the South" (
Marina Cobelligerante del Sud) fought for the King and Badoglio. In the north, a much smaller portion of the
Regia Marina joined the Republican National Navy (
Marina Nazionale Repubblicana) of Mussolini's new
Italian Social Republic (
Repubblica Sociale Italiana, or RSI) and fought on for the Germans. ==Notable naval actions of the campaign==