Respuesta :
Iwould say tyranny refers to the crash of the bomb and specifically the "crash" as grammatically as it describes what the dictators seek to create. Or actually I think it refers to the dictators as "what the dictators seek to create" is the logical description of the tyranny so I would go for the latter response. Roosevelt was describing what the Nazis were trying to do with the world ie establish tyranny.
Answer:
The anwser is not crash because I got it wrong. Try Dictators
Explanation: