annihilation of virtually the entire Soviet Air Force on the ground, the loss of major equipment, tanks, artillery, and major Soviet defeats as German forces trapped hundreds of thousands of Red Army soldiers in vast pockets. Soviet forces suffered heavy damage in the field as a result of poor levels of preparedness, which was primarily caused by a reluctant, half-hearted and ultimately belated decision by the Soviet Government and High Command to mobilize the army. Equally important was a general tactical superiority of the German army, which was conducting the kind of warfare that it had been combat-testing and fine-tuning for two years. The hasty pre-war growth and over-promotion of the Red Army cadres as well as the removal of experienced officers caused by the Purges offset the balance even more favourably for the Germans. Finally, the sheer numeric superiority of the Axis cannot be underestimated. A generation of brilliant Soviet commanders (most notably Georgy Zhukov) learned from the defeats, and Soviet victories in the Battle of Moscow, at Stalingrad, Kursk and later in Operation Bagration proved decisive in what became known to the Soviets as the Great Patriotic War. The Soviet government adopted a number of measures to improve the state and morale of the retreating Red Army in 1941. Soviet propaganda turned away from political notions of class struggle, and instead invoked the deeper-rooted patriotic feelings of the population, embracing Tsarist Russian history. Propagandists proclaimed the War against the German aggressors as the "Great Patriotic War", in allusion to the Patriotic War of 1812 against Napoleon. References to ancient Russian military heroes such as Alexander Nevski and Mikhail Kutuzov appeared. Repressions against the Russian Orthodox Church stopped, and priests revived the tradition of blessing arms before battle. The Communist Party abolished the institution of political commissars—although it soon restored them. The Red Army re-introduced military ranks and adopted many additional individual distinctions such as medals and orders. The concept of a Guard re-appeared: units which had shown exceptional heroism in combat gained the names of "Guards Regiment", "Guards Army", etc. During the German–Soviet War, the Red Army drafted a staggering 29,574,900 in addition to the 4,826,907 in service at the beginning of the war. Of these it lost 6,329,600 KIA, 555,400 deaths by disease and 4,559,000 MIA (most captured). Of these 11,444,100, however, 939,700 re-joined the ranks in the subsequently re-took Soviet territory, and a further 1,836,000 returned