"too overwhelming..." for what? Not a complete sentence as it stands. Are you using 'Deutsche Reich' to mean the eastern territory? It's unclear.
Did WW II begin Sep 1 ,1939 ? Did it begin at Versailles ?
Read the notes on that in article WW II . You say , did it begin with the invasion of the Sudetenland ?
I ask, what about the "Declaration of War against Germany by Judica of the World unite... " published March 4, 1933 in the Daily Express :
I welcome it if that someone explains this.
Deutsche Reich is the official name for Germany as of 1871. People that lived within the Deutsche Reich were/are citizen of the Deutsche Reich or "Reichs-Deutsche". Germans who lived outside the boundaries of the "Deutsche Reich" are "Volksdeutsche" or ethnic Germans .