Poland, the full name of the Republic of Poland, is located in central Europe, bordering Germany, Czech Republic, Slovakia, Ukraine, Belarus, Lithuania, and Russia's Kaliningrad Oblast. It has an area of ​​about 310,000 square kilometers, a population of about 38.64 million, and its capital, Warsaw. As an ancient country in central Europe, Poland has experienced ups and downs for centuries, and is still an important member of the European Union.