Complex sentence: Territorial changes after World War II removed the German language from large parts of Central-Eastern Europe and contributed to moribundness and extinction of some local dialects, while also damaging its status in Central-Western and Central-Southern Europe.
Split into simpler sentences: Territorial changes after World War II removed the German language from Central-Eastern Europe and contributed to moribundness and extinction of some local dialects. It also damaged the language's stand in Central-Western and Central-Southern Europe.