Estonia has experienced extreme political changes throughout the twentieth century that drastically altered the direction of trade flows. As economic changes occurred, geographers regionalized Estonia in different ways. During Estonia's independent period (1918-1939), the nation fit into a West European economic region as a peripheral agricultural country. Soviet annexation, 1940-1991, reversed Estonia's economic participation to an Eastern focused and industrialized republic. Today, Estonia has resurfaced as an independent nation that has begun to realign its economy toward Western European countries, while promoting itself as a geographic window between East and West.