Perhaps as important as the independence of the United States, the Treaty of Paris also created generous borders for the new nation. As part of the agreement, the British surrendered to the United States a large area known as the Northwest Territory. The actual geography of North America did not match the details used in the contract. The treaty established a southern border for the United States, but the separate Anglo-Spanish agreement did not provide for a northern border for Florida, and the Spanish government assumed that the border was the same as in the 1763 agreement, by which they had first ceded their territory in Florida to Britain. As the West Florida controversy continued, Spain used its new control over Florida to block U.S. access to Mississippi, in defiance of Article 8.  The treaty stipulated that the U.S. border extended directly westward from the “most northwest point” of Wood Lake (now partially to Minnesota, partly to Manitoba and partly to Ontario) until it reached the Mississippi River. But in fact, the Mississippi does not extend so far north; The line west of the Lake of the Woods never crosses the river. Moreover, the Paris Treaty did not explain how the new border would work in terms of controlling the movement of people and trade between the Canadian colonies of Great Britain and the United States. In 1784, the hopes of American diplomats to negotiate a trade agreement with Britain, which would solve some of the unfinished business of the Treaty of Paris, were not met; the United States would wait a decade before negotiating its first trade agreement with the British Empire with the Jay Treaty.  Through the times of war and rebellion, peace and alienation, and as friends and allies, Britain and the United States cemented these deep-seated ties during World War II in what is known as the “special relationship.” In the long run, historian Paul Johnson called it “the cornerstone of the modern and democratic world order.”  The thirteen colonies gradually gained more autonomy.
 British mercantilist policy became stricter, which benefited the metropolis, resulting in trade restrictions, limiting the growth of the colonial economy and artificially reducing the income potential of colonial traders. The sums were small, but Parliament insisted that it have the last commandment and that it be able to levy taxes at any time. Tensions escalated between 1765 and 1775 due to tax issues without American representation in Parliament. Beginning with the Boston massacre of 1770, when the British Redcoats opened fire on civilians, the rebellion consumed the indignant settlers. The British Parliament imposed a series of taxes, such as the Stamp Act of 1765, and the Tea Act of 1773, against which a mob of angry settlers protested at the Boston Tea Party by throwing boxes of tea in Boston Harbor. Parliament responded by adopting the so-called intolerant acts of 1774, which were intended to debone autonomy in Massachusetts. The 13 colonies were together. When the first shots were fired in the battles of Lexington and Concord in 1775, the American War of Independence began.
The Patriots took control of the 13 colonies and expelled all British officials until mid-1776.