Economic and social functions of polish and ukrainian big cities at the beginning of the 21st century

Poland and Ukraine have a countries-long history of neighbourly relations. There have been various periods in the long coexistence of the two nations, sometimes good and sometimes painful - besides conflict that are difficult to forget there are many examples of creative cooperation and joint Polish-Ukrainian achievements. The collapse of the communist system and changes on the political map of this part of the world have created new conditions and new opportunities for the development of relations between Poland and Ukraine. From introduction