Poland is a state in Central Eastern Europe and is home to approximately 38 million people. The country is the sixth largest member state of the European Union. The capital and biggest city of Poland is Warsaw. Poland is made up of 16 voivodships. The largest river in the country is the Vistula (Polish: Wisła).
Ukraine is a country in eastern Europe inhabited by about 42 million people. Kiev is the capital and also the greatest city of Ukraine. The country has been independent since 1991. The Dnieper River is the longest river in Ukraine.
The Czech Republic is a country in Central Europe with a population of about 10.5 million people. The capital and largest city of the country is Prague. In the Czech Republic lie the historical landscapes of Bohemia, Moravia and parts of Silesia. In 1918 the state of Czechoslovakia was formed, but the Czech Republic was not founded until 1993. The country has been a member of the EU since 01.05.2004.
Slovakia is a country in Central Europe, which is lived in by about 5.5 million people. The capital of the country is Bratislava (Pressburg). Slovakia has been independent since 1993. Before that it was part of Czechoslovakia for several decades.