In France, the Air Force intelligence section closely examined the strength of the Luftwaffe. It decided the German pursuit planes and bombers were the best in the world, and that the Nazis were producing 1000 warplanes a month. They perceived decisive German air superiority, so the Air Force was pessimistic about its ability to defend Czechoslovakia in 1938. Guy La Chambre, the civilian air minister, optimistically informed the government that the air force was capable of stopping the Luftwaffe. However, General Joseph Vuillemin, air force chief of staff, warned that his arm was far inferior. He consistently opposed war with Germany.