They tied states together with their economy
The very first military setback for Adolph Hitler and his forces was the Battle of Britain. This occurred during WWII when Hitler was forced to cancel his planned invasion of Britain. This operation was known as Operation Sea Lion. He continued to bomb them but was unsuccessful in defeating them.
The Cumberland Road made transportation to the West easier for new settlers. The Erie Canal facilitated trade with the West by connecting the Hudson River to Lake Erie. Railroads shortened transportation times throughout the country, making it easier and less expensive to move people and goods.
Hope this helps :)
I know that many of the Nazi soldiers were acting against their own will, and following Hitler because it was either that, or death. So you can cross of Nazi Party helping him out. And based on the differences between communism and fascism, with fascism being way more overontrolling and nationalist, my educated guess would be that the <em>fascist party</em> helped hitler become dictator.