LITHUANIAN-RUSSIAN STATE: FROM GREAT POWER TO POLISH PROVINCE
The article deals with the fateful period in the history of the Great princedom Lithuanian and Russian, for which this medieval state of the powerful feudal powers became fully aware to the level of second-rate Polish province; the struggle in Western Russia against Polish rule, the top of which was a rupture of the Union with Poland and the formation of the Russian Grand Duchy; the lessons of history for modern Belarus.