How does Mr. Frederick trick Napoleon?

Mr. Frederick agrees to pay a high price for Animal Farm’s timber, and encourages Napoleon to insult Mr. Pilkington. Knowing that the animals are not familiar with money, Frederick pays for the timber in forged banknotes. When the forgery is discovered, Frederick attacks Animal Farm and destroys the windmill. The insulted Mr. Pilkington refuses to help the animals defend their farm. This sequence of events roughly parallels the relations between Stalin’s Soviet Union (Napoleon), Nazi Germany (Frederick), and the United Kingdom (Pilkington) during the Second World War.