TATV, short for Tracked Armored Training Vehicle, known officially to the war department as Training Vehicle, Tracked, Armored, is the generic term for any heavyweight armored vehicle once in service with the UEG military or one that failed to enter service, and therefore was used primarily in training exercises to train tank crews. There have been many TATVs (pronounced tat-vee or tat-of) in UEG service throughout the years.