How can " How The Grinch Stole Christmas" be seen as a metaphor for the Cold War?

Okay So I have this global extra credit essay and I'm having a ton of trouble with it and i need a little help. The question is..." Explain how Dr. Seuss' "How The Grinch Stole Christmas" (either the book or movie) can be seen as a metaphor for the Cold War (1945-1990)" please answer ASAP Thanks!