What actions does he suggest that portend the measures that Germany will take in the coming decade, resulting in WWII and the Holocaust?

The breaking of the Treaty of Versailles and the segregation of the Jews resulted in WWII and the Holocaust.

Explanation:

Hitler's becoming the chancellor of Germany launched aggressive policies that led to the starting WWII in Europe. Everything Hitler did it pushed toward war, from the beginning, the breaking of the Treaty of Versailles, and the territorial expansion somewhat threaten the European powers.

Anti-Jewish legislation in Nazi Germany included several laws that separated the Jews from German society and restricted their political and civil rights. Hitler's idea of the pure race called Aryan led other push, especially Jews to ghettos and concentration camps.                                                                  

they had a lot of depression during the revolutionary war