conducted under the Third Republic. On one hand, children were not allowed to speak Breton at school, and were punished by teachers if they did. Famously, signs in schools read: "It is forbidden to speak Breton and to spit on the floor" ("Il est interdit de parler Breton et de cracher par terre"). At the same time, the Celtic Revival led to the foundation of the Breton Regionalist Union (URB) and later to independence movements linked to Irish, Welsh, and Scottish and Cornish independence parties in the UK, and to pan-Celticism. However, the audience of these movements remained very low and their ideas did not reach a large public until the 20th century. The Seiz Breur movement, created in 1923, permitted a Breton artistic revival but its ties with Nazism and the collaborationism of the Breton National Party during World War II weakened Breton nationalism in the post-war period. Brittany lost 240,000 men during the First World War. The Second World War was also catastrophic for the region. It was invaded by Nazi Germany in 1940 and freed after Operation Cobra in August 1944. However, the areas around Saint-Nazaire and Lorient only surrendered on 10 and 11 May 1945, several days after the German capitulation. The two port towns had been virtually destroyed by Allied air raids, like Brest and Saint-Malo, and other towns, such as Nantes and Rennes, had also suffered. In 1956, Brittany was legally reconstituted as the Region of Brittany, although the region excluded the ducal capital of Nantes and the surrounding area. Nevertheless, Brittany retained its cultural distinctiveness, and a new cultural revival emerged during the 1960s and 1970s. Bilingual schools were opened, singers started to write songs in Breton, and ecological catastrophes such as the Amoco Cadiz oil spill or the Erika oil spill and water pollution from intensive pig farming favoured new movements to protect the natural heritage. Government and politics Traditional subdivisions Brittany as a political entity disappeared in 1790, when it was divided into five départements. The Breton départements more or less correspond to the nine Catholic dioceses that appeared at the beginning of the Middle Ages. They were often called "pays" or "bro" ("country" in French and Breton) and they also served as fiscal and military districts. Brittany is also divided between Lower Brittany ("Basse Bretagne" and "Breizh Izel"), corresponding to the western half, where Breton is traditionally spoken, and Upper