Maquis (World War II) advanced, the French Resistance rose against the Nazi occupation forces and their garrisons en masse. For example, Nancy Wake's group of 7,000 maquisards was involved in a pitched battle with 22,000 Germans on June 20, 1944. Some Maquis groups took no prisoners so some German soldiers preferred to surrender to Allied soldiers instead of facing maquisards. The Allied offensive was slowed and the Germans were able to counterattack in southeast France. On the Vercors Massif, the Maquis du Vercors rose up with some 4000 soldiers against the German occupiers, but was defeated with 600 casualties. When General De Gaulle dismissed
Maquis (World War II) the same sites for months, defying their own rules of mobility. Guerrilla warfare practiced by the Maquis “created a psychosis of fear within the enemy [...], giving an impression of numbers and strength which was more illusory than real". The Maquis de l’Ain’s effectiveness was due to the training school opened at Gorges above Mongriffon in June 1943. Captain Romans described the situation like so: "The watchwords were explicit: no large concentrations of men. No pitched battles. Guerrilla warfare only! We had a few revolvers and some hunting rifles and were reduced to making sketches in order to teach the