In the book "Animal Farm" where did Snowball get his ideas for their battle strategies?

Snowball studied Napoleon's successful battles to learn some strategy for fending off the farmers who rallied to Jones to help him retake the farm.

He used tactics of both diversion and surprise to win. He even lured the farmers to "chase" the animals to get them into their most vulnerable position before finishing off the counterattack.

The strategy worked, and the farmers were indeed chased away.