The scuttling of the French fleet at Toulon was orchestrated by Vichy France on 27 November 1942 to prevent Nazi German forces from taking it over. 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 Franois 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.

Toulon (UK: , US: , French: [tulɔ̃]; Provençal: Tolon (classical norm), Touloun (Mistralian norm), pronounced [tuˈlun]) is a city on the French Riviera and a large port on the Mediterranean coast, with a major naval base. Located in the Provence-Alpes-Côte d'Azur region, and the Provence province, Toulon is the prefecture of the Var department.

The Commune of Toulon has a population of 171,953 people (2017), making it France's 14th-largest city. It is the centre of an urban unit with 575,347 inhabitants (2017), the ninth largest in France. Toulon is the third-largest French city on the Mediterranean coast after Marseille and Nice.

Toulon is an important centre for naval construction, fishing, wine making, and the manufacture of aeronautical equipment, armaments, maps, paper, tobacco, printing, shoes, and electronic equipment.

The military port of Toulon is the major naval centre on France's Mediterranean coast, home of the French aircraft carrier Charles de Gaulle and her battle group. The French Mediterranean Fleet is based in Toulon.