1942 destruction of the fleet by Vichy France
The scuttling of the French fleet at Toulon was orchestrated by Vichy France on 27 November 1942 to prevent Nazi German forces from seizing it. After the Allied invasion of North Africa, the Germans invaded the territory administered by Vichy under the Armistice of 1940. The Vichy Secretary of the Navy, Admiral François Darlan, defected to the Allies, who were gaining increasing support from servicemen and civilians. His replacement, Admiral Gabriel Auphan, guessed correctly that the Germans intended to seize the large fleet at Toulon (even though this was explicitly forbidden in the Franco-Italian armistice and the French-German armistice), and ordered it scuttled.
The Germans began Operation Anton but the French naval crews used subterfuge to delay them until the scuttling was complete. Anton was judged a failure, with the capture of 39 small ships, while the French destroyed 77 vessels; several submarines escaped to French North Africa. It marked the end of Vichy France as a credible naval power and marked the destruction of the last political bargaining chip it had with Germany.
Context.
After the Fall of France and the Armistice of 22 June 1940, France was divided into two zones, one occupied by the Germans, and the (free zone). Officially, both zones were administered by the Vichy regime. The armistice stipulated that the French fleet would be largely disarmed and confined to its harbours under French control, but the French fleet did cooperate with Nazi Germany although the French retained ultimate operational control over their ships. The Allies were concerned that the fleet, which included some of the most advanced warships of the time, might fall into German hands (especially the British who considered it to be a life-or-death matter) and the British attacked the French fleet at Mers-el-Kébir on 3 July 1940 and at the Battle of Dakar on 23 September 1940.
On 8 November 1942 the Allies invaded French North Africa in Operation Torch. It may be that General Dwight Eisenhower, with the support of President of the United States Franklin D. Roosevelt and British Prime Minister Winston Churchill, made a secret agreement with Admiral Darlan to give him control of French North Africa if he defected to the Allies. An alternative view is that Darlan was an opportunist and switched sides for self-advancement, thus becoming titular head of French North Africa. 
Following the Allied invasion of French North Africa, Adolf Hitler ordered Case Anton, the occupation of Vichy France and reinforced German forces in Africa.
Prelude.
Political aspect.
Beginning 11 November 1942 negotiations took place between Germany and Vichy France. The resolution was that Toulon should remain a "stronghold" under Vichy control and defended against the Allies and "French enemies of the government of the Maréchal". Grand Admiral Erich Raeder, commander of the , believed that Vichy French Navy officers would fulfill their duty under the armistice to not let the ships fall into the hands of a foreign nation.
Raeder was led to believe that the Germans intended to use anti-British sentiment among French sailors to get them to side with the Italians. Hitler in fact intended to seize the fleet and have German sailors capture the French ships and turn them over to Italy; German officers privy to this plan objected but Hitler ignored them and gave orders to implement the plan on 19 November.
On 11 November, as German and Italian troops encircled Toulon, the Vichy Secretary of the Navy, Admiral Gabriel Auphan, ordered Admirals Jean de Laborde and André Marquis to:
Engineers had the initial orders to scuttle the ships by capsizing them. The order was then modified, in the interest of recovering the ships after the war, to sinking them on an even keel. On 15 November, Laborde met with Marshal Philippe Pétain and Auphan. In private, Auphan tried to persuade Laborde to set sail and join the Allies; Laborde refused to obey anything short of a formal order from the French government, and Auphan resigned shortly thereafter.
Technical and tactical aspect.
On the French side, as a token of goodwill towards the Germans, coastal defences were strengthened to safeguard Toulon from an attack from the sea by the Allies. These preparations included preparations to scuttle the fleet, in case the Allies succeeded in landing. French forces commanded by Admiral Jean de Laborde included the "High Seas Fleet" composed of the 38 most modern and powerful warships, and Admiral André Marquis, "préfet maritime" commanded a total of 135 ships, either in armistice custody or under repair.
Under the armistice, French ships were supposed to have almost empty fuel tanks; in fact, by falsifying reports and tampering with gauges, their crews had managed to store enough fuel to reach North Africa. One of the cruisers, , was in drydock, helpless. After the Germans required the remnants of the French Army to disband, French sailors had to man coast defence artillery and anti-aircraft guns, which made it impossible to swiftly gather the crews and get the ships quickly under way.
Crews were initially hostile to the Allied invasion but out of the general anti-German sentiment and as rumours about Darlan's defection circulated, this stance evolved into support for De Gaulle. The crews of the , , and , notably, started chanting "Long live De Gaulle! Set sail!" On 12 November, Admiral Darlan further escalated tensions by calling for the fleet to defect and join the Allies.
Vichy military authorities lived in fear of a "coup de main" organised by the British or by the Free French. The population of Toulon, defiant of the Germans, mostly supported the Allies; the soldiers and officers were hostile to the Italians who were seen as "illegitimate victors" and duplicitous. The fate of the fleet, in particular, seemed dubious. Between the 11th and the 26th, numerous arrests and expulsions took place. The French admirals, Laborde and Marquis, ordered their subordinates to take a pledge of allegiance to the regime. Two senior officers, Humbertand and capitaine de vaisseau Pothuau, refused. The crews were first kept aboard their ships, and when they were allowed ashore the "Service d'ordre légionnaire" monitored all suspected targets of the Resistance.
Operation Lila.
The objective of Operation Lila was to capture the units of the French fleet at Toulon intact. The 7th Panzer Division, augmented with four combat groups including two armoured groups and a motorcycle battalion from the 2nd SS Panzer Division Das Reich, were entrusted with the mission. To prevent French naval units from scuttling themselves, "Marinedetachment Gumprich" was assigned to one of the groups.
The operation was initiated by the Germans on 19 November 1942, to be completed by 27 November. German forces were to enter Toulon from the east, capturing , headquarters of Admiral Marquis and the Mourillon arsenal; and from the west, capturing the main arsenal and the coastal defenses. German naval forces cruised off the harbor to engage any ships attempting to flee, and laid naval mines.
The combat groups entered Toulon at 4 a.m. on 27 November and made for the harbour, meeting only weak and sporadic resistance. At 4 a.m. the Germans entered Fort Lamalgue and arrested Marquis, but failed to prevent his chief of staff, Contre-Admiral Robin, from calling the chief of the arsenal, Contre-Admiral Dornon. The attack came as a complete surprise to Vichy officers, but Dornon transmitted the order to scuttle the fleet to Admiral Laborde aboard the flagship "Strasbourg". Laborde was taken aback by the German operation, but transmitted orders to prepare for scuttling, and to fire on any unauthorised personnel approaching the ships.
Twenty minutes later, German troops entered the arsenal and started machine-gunning the French submarines. Some of the submarines set sail to scuttle in deeper water. left her moorings, snuck out of the harbour and dove at 5:40 a.m., escaping to Algiers. The German main force got lost in the arsenal and was behind schedule by one hour; when they reached the main gates of the base, the sentries pretended to need paperwork, to delay the Germans without engaging in an open fight. At 5:25 a.m., German tanks finally rolled through, and "Strasbourg" immediately transmitted the order "Scuttle! Scuttle! Scuttle!" by radio, visual signals and dispatch boat. French crews evacuated, and scuttling parties started preparing demolition charges and opening sea valves on the ships.
At 6:45 a.m. fighting broke out around "Strasbourg" and "Foch", killing a French officer and wounding five sailors. When naval guns started engaging the German tanks, the Germans attempted to negotiate; a German officer demanded that Laborde surrender his ship, to which the admiral answered that the ship was already sunk.
As "Strasbourg" settled on the bottom, her captain ordered demolition charges ignited, which destroyed the armaments and vital machinery, and ignited her fuel stores. "Strasbourg" was a total loss. A few minutes later the cruiser "Colbert" exploded. The German party attempting to board the cruiser heard the explosions and tried to persuade her crew that scuttling was forbidden under the armistice provisions. However, the demolition charges were detonated, and the ship burned for twenty days.
Meanwhile, the captain of the cruiser ordered his ship capsized and demolition charges set. German troops requested permission to come aboard; when this was denied, they did not attempt to board. The ship sank and exploded, burning for seven days.
German troops forcibly boarded the cruiser , put her crew out of the way, and closed her open sea valves. The ship's captain, Moreau, ordered the scuttling charges in the main turrets lit with shortened fuses and when they exploded and fires took hold, ordered a final evacuation. French and Germans alike fled the vessel. Explosions from the ship's torpedo stores destroyed the vessel, which burned for ten days.
The cruiser "Jean de Vienne", in drydock, was boarded by German troops, who disarmed the demolition charges, but the open sea valves flooded the ship. She sank, blocking the drydock. In another drydock, the captain of the damaged , which had been heavily damaged by the British in the attack on Mers-el-Kébir, at first refused orders to scuttle, but was persuaded by his colleague in the nearby cruiser to follow suit. The crew opened the holes caused by British torpedo attacks to sink the ship, and demolition charges destroyed her vital machinery. As "Dunkerque" exploded, "La Galissonnière" reproduced the manoeuvre executed by "Jean de Vienne".
Officers of the battleship and the seaplane carrier managed to delay German officers with small talk until their ships were completely sunk.
Similar scenes occurred with the destroyers and submarines. Germans already had come aboard the submarine by the time her crew opened her seacocks to scuttle her, and the French crewmen and Germans jostled one another as the French abandoned ship and the enraged Germans rushed below to try to prevent her from sinking. Unfamiliar with submarines, the Germans were unsuccessful and narrowly avoided drowning as they evacuated the sinking submarine..
The Germans eventually seized three disarmed destroyers, four badly damaged submarines, three civilian ships, and the remains of two obsolete battleships of no combat value, the semi-dreadnought and the disarmed former , renamed "Océan" in 1936 and hulked for use as an accommodation ship.
Aftermath.
Operation Lila was a failure. The French destroyed 77 vessels, including 3 battleships, 7 cruisers, 15 destroyers, 13 torpedo boats, 6 sloops, 12 submarines, 9 patrol boats, 19 auxiliary ships, 1 school ship, 28 tugs, and 4 cranes. 39 small ships were captured, most of them sabotaged and disarmed. Some of the major ships were ablaze for several days, and oil polluted the harbour so badly that it would not be possible to swim there for two years.
As was to be expected, the scuttling ended friendly naval cooperation between the Axis and Vichy France and Germany absorbed whatever naval assets Vichy France had left.
Several submarines ignored orders to scuttle and chose to defect to French North Africa: "Casabianca" and "Marsouin" reached Algiers, "Glorieux" reached Oran. "Iris" reached Barcelona. "Vénus" was scuttled in the entrance of Toulon harbour. One auxiliary surface ship, "Leonor Fresnel", managed to escape and reach Algiers. General Charles de Gaulle heavily criticised the Vichy admirals for not ordering the fleet to flee to Algiers. The Vichy regime lost its last token of power, as well as its credibility with the Germans, with the fleet.
While the German Naval War Staff were disappointed, Adolf Hitler took a different perspective. He had little use for capital ships and other large naval vessels, especially after the sinking of the "Bismarck", and so was satisfied