Complex sentence: Galicia is a region that finds itself without an independent identity, having always been a part of other territories, ruled by others, having existence as parts of Ukraine, Poland, Hungary, and other territories and provinces.
Split into simpler sentences: Galicia is a region that finds itself without an independent identity, having always been a part of other territories. Ruled by others, it has existed as part of the Ukraine, Poland and Hungary, and other territories and provinces.