What does the Beast of England represent in Animal Farm?

Beasts of England represents The Internationale, the anthem of the Soviet Union when it was first formed shortly after the Bolshevik Revolution.

The Internationale was later replaced by Гимн Советского Союза as the National Anthem of the Soviet Union. This is represented by the phasing out of Beasts of Englandby Napoleon in favor of Animal Farm! as the farm's anthem. Animal Farm! was later replaced by Comrade Napoleon.