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
Economic history of the United Kingdom manufactured goods were sold around the world, and raw materials and luxury goods were imported to Britain. During the Industrial Revolution the empire became less important and less well-regarded. The British defeat in the American War of Independence (1775–1783) deprived it of its largest and most developed colonies. This loss brought a realisation that colonies were not particularly economically beneficial to the home economy. It was realised that the costs of occupation of colonies often exceeded the financial return to the taxpayer. In other words, formal empire afforded no great economic benefit when trade would continue whether the overseas political