Disputes concerning the delimitation of the territories of Chuvashia and Tatarstan in the 20s of the XX century

The article considers the problem of territorial disputes between Tatarstan and Chuvashia in the 20s of XX century. The author lists the main stages of the resolution of this issue between the two regions of the Middle Volga region. The attention is focused on the fact that the acute territorial issue has been resolved peacefully.