EUROPEAN CHESSBOARD: MITTELSPIEL in "MITTELEUROPA" (on the 625-th anniversary of the Krewo Union and the 600-th anniversary of Gruenwald battle)
Article is dedicated to the formation of the geopolitical structure in Central Europe. There is examined the political history of Eastern European states of the XIII - first half XIV centuries. The geopolitical consequences of the Gruenwald battle are considered.