On 23 July 1942, Hitler personally rewrote the operational objectives for the 1942 campaign, greatly expanding them to include the occupation of the city of Stalingrad. Both sides began to attach propaganda value to the city, which bore the name of the Soviet leader. Hitler proclaimed that after Stalingrad's capture, its male citizens were to be killed and all women and children were to be deported because its population was "thoroughly communistic" and "especially dangerous". It was assumed that the fall of the city would also firmly secure the northern and western flanks of the German armies as they advanced on Baku, with the aim of securing its strategic petroleum resources for Germany. The expansion of objectives was a significant factor in Germany's failure at Stalingrad, caused by German overconfidence and an underestimation of Soviet reserves.