After the French armies surrendered in summer 1940, Germany seized two million French prisoners of war and sent them to camps in Germany. About one third were released on various terms. Of the remainder, the officers and non-commissioned officers were kept in camps and did not work. The privates were sent out to work. About half of them worked for German agriculture, where food supplies were adequate and controls were lenient. The others worked in factories or mines, where conditions were much harsher.