 There were actually only 17,000 tanks available at the time, meaning several of the new mechanized corps were badly under strength.The pressure placed on factories and 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.