 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.