The Constitution was ratified when the Articles of Confederation proved to be unworkable without a crisis to unite the states, the American Revolution. During the American Revolution, the states cooperated under the Articles, though Washington had to perpetually beg for money and supplies for the Continental Army. After the Treaty of Paris was signed in 1783, the new nation was independent, but it lacked direction. None of the states wanted to assume more than what they thought was their fair share of the national debt. Under the agreement of the treaty, the United States still had to meet its debt obligations incurred during the war and during the colonial period. The US owed money to Britain and France. It also could not pay its soldiers, many of whom were growing agitated when they lost their farms to foreclosure. Under the Articles of Confederation, the national government could only request money from the states and it was too easy for one state to oppose any attempt at gaining revenue, such as when Rhode Island blocked an attempt at raising a tariff.
The Constitution was ratified in an attempt to make the nation financially solvent by placing taxation in the hands of the national government and making this government responsible for all national debts. This tied the states to the national government. The Constitution was also ratified in order to give the nation a national army so that any of the major powers of Europe who attempted to invade would not pick off the state militias one by one. The Founders were worried about creating a government that would become aloof to the people's needs, so they created three branches of government; each branch would have checks and balances over the others. The Anti-Federalists also insisted on a Bill of Rights, with the Tenth Amendment guaranteeing the states with some rights and responsibilities.