No taxation without representation the House of Commons must include colonial representatives when it voted on colonial matters, or operate by using the consent of the colonial Assemblies. The Americans rejected the Stamp Act of 1765 brought in by British Prime Minister George Grenville, and violently rejected the remaining tax on tea imports, under the Tea Act passed in May 1773, at the Boston Tea Party on December 16, 1773. The Parliament considered this an illegal act because they believed it undermined the authority of the Crown-in-Parliament. When the British then used the military to enforce laws that the colonists believed Parliament had passed
Harbor Defenses of New York defending the colonies. One result was that delegates from nine colonies met to protest at what would later be known as Federal Hall in Manhattan as the Stamp Act Congress, protesting "taxation without representation". In November of that year a committee of the Sons of Liberty was established in New York. In April 1775 the American Revolution broke out full-scale at Lexington and Concord in Massachusetts. In March 1776 Patriot forces captured Boston. Their commander, General George Washington, thought the evacuating British force would immediately attempt to capture New York and sent troops to the city, soon followed by himself.