
In several other topics, I've mentioned that I think there's a close link between the Harry Potter books and some events and people surrounding WWII and the Holocaust.
To back up my theory, I am about 92.49% sure that I saw an interview where J.K. Rowling says there are some corolations (sp?).
I don't think everything corolates, I don't think it's an exact political satire in the way Animal Farm was, but here's my theory:
Voldemort - Hitler (cunning, prejudice dictator who, although very public in some ways, did his most terrible things in secret)
Death Eaters - Nazi Party members (do I need to explain?)
Ministry of Magic - Occupied Countries (for the most part, turned a blind eye until it was too late; had a false, and dangerous, idea that they were immune to the evil that was Nazi Germany)
Order of Phoenix - Allies
DA - Resistance fighters (young rebels doing everything they can to fight against evil in secret)
Inquisitorial Squad - Aryan Youth Leagues
Muggles - Jews, homosexuals, Gypsies, intellectuals, everyone the Nazis were prejudice against