The animals have a bittersweet victory against Jones. It is heavily implicated that the Animal Farm is becoming a place grounded more in military might than agrarian industry. Many decisions point to that, such as: the decision to fire Jones' gun twice a year, military decorations etc. All these things show how the Animal farm is slowly being transformed into a place governed by martial law more than the Seven Commandments of Animalism.
A meaningful quote and/or a universal idea could serve as hooks for the introuction of a literary analysis.
An analgy or metaphor is typically used in a compare contrast essay, a definition of terms is more for a research paper as is a startling fact.
Structure, infrastructure, composition