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
Declaration of war by the United States from the Vietnam War, a debate emerged about the extent of presidential power in deploying troops without a declaration of war. A compromise in the debate was reached with the War Powers Resolution. This act clearly defined how many soldiers could be deployed by the President of the United States and for how long. It also required formal reports by the President to Congress regarding the status of such deployments, and limited the total amount of time that American forces could be deployed without a formal declaration of war. Although the constitutionality of the act has never been tested, it