How did the events of world war 2 contribute to the nazi holocaust of european jews?

Explanation:

Hitler was born in Austria in 1889, he served in the German army during World War I. Like many anti-Semites in Germany, he blamed the Jews for the country’s defeat in 1918. Soon after the war ended, Hitler joined the National German Workers’ Party, which became the National Socialist German Workers’ Party (NSDAP), known to English speakers as the Nazis.  While imprisoned for treason for his role in the Beer Hall Putsch, Hitler wrote the memoir "Mein Kampf", "My Struggle", in which he predicted a general European war that would result in “the extermination of the Jewish race in Germany.”

no questions on whether they are allowed that right