How did adolf hitler contribute to the outbreak of ww2

He used hate filled speeches to discredit Jews.  He lied to the Germans brainwashing them into hating the Jewish people.

by 1880, germany had more rail lines than great britain and russia.

well we know that it was fought between america and the united kingdom based on that i assume people consider the second war of independence because brtiain and england (uk)   the uk is made up of england and i assume thats why it was considered that