The Federalists papers are a series of articles and essays. The main reason as to why this was written was to convince people that a strong centralized would be better for the people and their liberty. They contained many historical arguments and philosophies, and also a lot of criticisms about the Articles of Confederation. The government under the Articles wouldn't be able to the liberty of the people and wouldn't have enough power and authority to enforce laws. The Federalists papers described many of the negative after-effects because of the Articles of Confederation. The main purpose of a government is to provide common defense, so the government should be given enough power to do just that.