What makes one country have the right to exist as compared to another?  Under what parameters are borders defined and maintained?  Nationhood is a large group of people united by common language, culture or economic life.  How can someone be allowed to destroy a nation?  Poland’s five national dances are rooted in a dozen centuries of Polish culture and history. According to one song’s lyrics: "As long as we have the Vistula River, we will always be free."