The final solution as it was called was the nazi plan to exterminate jews first they were shot by the einstazgruppen which used to be hitler personal bodyguards that turned into a death squad when thos proved ineffective they put jews homosexuals and a few other races in death camps and labor camps
To allowed the United States to trade with both belligerents without taking sides in their war.
The main goals of the Congress of Vienna were to establish the terms of long-lasting peace between European powers after the French Revolution and the Napoleonic Wars and to finalize European boundaries in order to create a balance between each of the major countries of Europe.
The similarities between the five great revolutions of the modern world – the English Revolution (1649), American Revolution (1776), French Revolution (1789), Russian Revolution (1917) and Chinese Revolution (1949). hope this maybe helped :)