History of the United Kingdom Britain as the world's dominant colonial power. During the 1760s and 1770s, relations between the Thirteen Colonies and Britain became increasingly strained, primarily because of opposition to Parliament's repeated attempts to tax American colonists without their consent. Disagreement turned to violence and in 1775 the American Revolutionary War began. In 1776 the Patriots expelled royal officials and declared the independence of the United States of America. After capturing a British invasion army in 1777, the US formed an alliance with France (and in turn Spain aided France), evening out the military balance. The British army controlled only a handful of
United Kingdom–United States relations Atlantic, such as the Baptists, Methodists, Congregationalists and Episcopalians. Britain and the United States practise what is commonly referred to as an Anglo-Saxon economy in which levels of regulation and taxes are relatively low, and government provides a low to medium level of social services in return. Independence Day, July 4, is a national celebration which commemorates the July 4, 1776 adoption of the Declaration of Independence from the British Empire. American defiance of Britain is expressed in the American national anthem, "The Star Spangled Banner", written during the War of 1812 to the tune of a British celebratory song