Complex sentence: Austria at the time of National Socialism describes in particular the period of Austrian history from March 12,1938 when the German annexation of Austria made Austria part of the German Third Reich until the end of World War II in spring 1945.
Split into simpler sentences: Austria at the time of National Socialism describes in particular the period of Austrian history from March 12,1938 when the German annexation of Austria made Austria part of the German Third Reich. This lasted until the end of World War II in spring 1945.