military planners to show production numbers also led to a situation where the majority of armored vehicles were obsolescent models, critically lacking in spare parts and support equipment, and nearly three-quarters were overdue for major maintenance. By 22 June 1941 there were only 1,475 of the modern T-34s and KV series tanks available to the Red Army, and these were too dispersed along the front to provide enough mass for even local success. To illustrate this, the 3rd Mechanized Corps in Lithuania was formed up of a total of 460 tanks; 109 of these were newer KV-1s and T-34s. This corps would prove to be one of the lucky few with a substantial number of newer tanks. However, the 4th Army was composed of 520 tanks, all of which were the obsolete T-26, as opposed to the authorized strength of 1,031 newer medium tanks. This problem was universal throughout the Red Army, and would play a crucial role in the initial defeats of the Red Army in 1941 at the hands of the German armed forces. Wartime War experience prompted changes to the way frontline forces were organised. After six months of combat against the Germans, the Stavka abolished the rifle corps which was intermediate between the army and division level because, while useful in theory, in the state of the Red Army in 1941, they proved ineffective in practice. Following the decisive victory in the Battle of Moscow in January 1942, the high command began to reintroduce rifle corps into its more experienced formations. The total number of rifle corps started at 62 on 22 June 1941, dropped to six by 1 January 1942, but then increased to 34 by February 1943, and 161 by New Year's Day 1944. Actual strengths of front-line rifle divisions, authorised to contain 11,000 men in July 1941, were mostly no more than 50% of establishment strengths during 1941, and divisions were often worn down, because of continuous operations, to hundreds of men or even less. On the outbreak of war, the Red Army deployed mechanised corps and tank divisions whose development has been described above. The initial German attack destroyed many and, in the course of 1941, virtually all of them,(barring two in the Transbaikal Military District). The remnants were disbanded. It was much easier to coordinate smaller forces, and separate tank brigades and battalions were substituted. It was late 1942 and early