Extent of North Vietnamese Nationalism as cause of victory?

Dec 2017
Hi, I'm new to the forums but have an essay and was looking for some ideas on how you would structure an essay on the impact/ success of north Vietnamese nationalism in the war. I know that it was important, but I'm having trouble nailing down exactly how to discuss its impact. Also would the many political camps/ inductions by Ho Chinh also be relevant?

Question- To what extent did North Vietnamese nationalism contribute to a USA defeat?