Leadership at the camps was divided into five departments: commander and adjutant, political affairs division, protective custody, administration, and medical personnel.[96] By 1935, Himmler secured Hitler's approval and the finances necessary to establish and operate additional camps.[97] Six concentration camps[lower-alpha 1] housing 21,400 inmates (mostly political prisoners) existed at the start of the war in September 1939.[99] By the end of the war, hundreds of camps of varying size and function had been created, holding nearly 715,000 people, most of whom were targeted by the regime because of their race.[100][101] The concentration camp population rose in tandem with the defeats suffered by the Nazi regime; the worse the catastrophe seemed, the greater the fear of subversion, prompting the SS to intensify their repression and terror.[102]