Discuss why Snowball, Napoleon, and Squealer become the leaders of the farm in Animal Farm.

These pigs are able to assert leadership because they are
"the cleverest of the animals."  It is this charisma that allows the pigs to become the
leaders of the farm.  These three end up becoming the "vanguard" of the animal
"proletariat" because they each represent some aspect of political leadership that will
form the basis of the animal form of government.  Snowball understands the theoretical
conditions of the animals leading the farm, while Squealer understands the needs to
convince the animals of the authenticity of the pigs' leadership.  Napoleon fully
understands how to ensure that the revolution is lasting and how to consolidate his own
power to make sure that the change from humans to animals is a lasting one.  Each one of
these pigs is able to grasp the immediacy of the moment and seize the moment to ensure
that their leadership is presented as the only logical alternative to that of the
humans.