Here is a map showing Poland today. Poland is shown in white, with its borders outlined in a thick red line. Poland today is surrounded by Germany on the west, the Czech Republic and Slovakia on the south, Ukraine and Belarus to the east, and Lithuania and the Russian oblast of Kaliningrad to the north.
But the map didn't always look like this. Poland's borders have changed many times over the past 250 years. The next dozen slides will present the changing borders of Poland over the recent centuries.