Napoleon orders death for anyone who gives the hens food. They are rebelling because they don't want Napoleon to sell their eggs.
Napoleon gain full control of the animals by pushing them to be against Snowball.
He killed them
He invaded it with his armies.
He uses his 9 dogs
Napoleon convinces the the animals that all the unfortunate instances on Animal Farm were because of Snowball. He propagandized Snowball to be the bad guy and used him as a scapegoat in order to gain control. Napoleon also used the dangerous dogs to intimidate the other farm animals into not questioning him. All in all, Napoleon used power and fear the oust Snowball.
Napoleon gains power by using fear, by exploiting the animals, and by bending the rules. He instills fear as a way of giving the animals no chance to argue with him... Which allows him to run the farm the way he wanted to, and to make it easier for him than the other animals.
He gained leadership dictatorship over all the animals on Animal Farm. Not to mention that Squealer warped the memories of the other animals by tricking them into believing the lies he spun. The dogs enforced all the ridicules "laws" made by Napoleon.
The Spanish gained full control over Inca lands after capturing and executing the Inca emperor Atahualpa in 1533. This event marked the beginning of the Spanish conquest of the Inca Empire.
Napoleon is not the protagonist, but is a main character who represents corruption. Napoleon twists the rules and morals of his cause for his own gain, and is shown as an antagonist and foil to Snowball.
His Continental System was a failed economic boycott. His invasion of Egypt in the hope of ending the UK control of India did not gain him any allies.
Plebiscite vote
The animals get attcked by Jones and his men, the animals fall back to the cow shed (which is why its called the battle of the cow shed) where snowballs plan falls into place but than the animals gain the upper hand and run the humans out of the farm once again.
Fort Henry Fort Donelson Shiloh Vicksburg
you can gain control in a dictatorship by becoming president