In 1939 Sartre was drafted into the French army. France was at war with Germany, because Germany had invaded France (World War II) Sartre was captured by German troops in 1940, and Sartre spent nine months as a prisoner of war in a camp. Sartre was released from the prison camp (jail) in 1941. He then began working as a teacher again. He made friends with other writers and thinkers such as Merleau-Ponty, Jean-Toussaint and Dominique Desanti, and Jean Kanapa.