This document is a summary of Federalist No. 2 by John Jay, which argues for the importance of a united federal government over separate state confederacies. In 3 sentences: Jay asserts that a single, united federal government would better serve the interests and prosperity of the American people rather than dividing into separate state confederacies; he notes the benefits the country has seen from its unity during the Revolutionary War and the risks that could come from a lack of unity; and questions why some are now advocating dividing the country after unity has consistently been seen as crucial to the nation's well-being.