Nazi Germany was chaotic. Wide spread racism was apparent in the air towards Jews, Gypsies, Bisexuals, and many more minorities. Hitler brainwashed all his followers into believing in an autocratic government which ensured it's followers in permanent prosperous in the near future. Nazi Germany was well known around the world, making it have many enemies (and some allies) at that time. Nazi Germany will be forever known. Hope this helped :)
Hitler did name quite a few Jewish veterans and those who were close to him to be 'Honorary Aryans'. It was more of a matter of respect and trust for them than anything.
It was primarily "two world wars" that happened in the world between 1900 and 1950, since the First World War took place from 1914-1918, and the Second World War took place from 1939-1945.
To pay taxes, abide the law, and respect other people. I hope this helps. :)
