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New York and New Jersey campaign
Part of the American Revolutionary War
Washington's retreat from New York October–December 1776 and the Battle of Long Island August 27, 1776.
Date 1776–1777 Location New York and New Jersey Result British gain control of New York; U.S. lose and then regain control of New Jersey
Combatants
United States	Great Britain
Commanders
George Washington, Charles Lee	Sir William Howe, Lord Cornwallis
Strength
19,000 regulars and militia	25,000 soldiers, 10,000 seamen

The New York and New Jersey campaign was a series of engagements in the American Revolutionary War between British forces under General Sir William Howe and an American army under General George Washington. Beginning with the landing on Staten Island on July 3, 1776, British forces gained control of New York City and drove the Americans across New Jersey and into Pennsylvania. Late in 1776, Washington launched a surprise counterstrike, an important morale boost for the Americans after an otherwise disastrous campaigning season.

Having withdrawn from Boston after an unsuccessful campaign, the British now focused on capturing New York City. General William Howe, with the services of his brother, Admiral Lord Richard Howe, began amassing troops on Staten Island in July 1776. General Washington, with a smaller army of about 19,000 men, was uncertain where the Howes intended to strike. He unwittingly violated a cardinal rule of warfare and divided his troops about equally in the face of a stronger opponent. The Continental Army was split between Long Island and Manhattan, thus allowing the stronger British forces to engage only one half of the smaller Continental Army at a time.

In late August, the British transported about 22,000 men (including 9,000 "Hessians") to Long Island. In the Battle of Long Island on August 27, 1776, the British outflanked the American positions, driving the Americans back to the Brooklyn Heights fortifications. General Howe then began to lay siege to the works, but Washington skillfully managed a nighttime evacuation through his unguarded rear across the East River to Manhattan Island.

Having taken Long Island, the British moved to seize Manhattan. On September 15, General Howe landed about 12,000 men on lower Manhattan, quickly taking control of New York City. The Americans withdrew to Harlem Heights, where they skirmished the next day, but held their ground.

When Howe moved to encircle Washington's army in October, the Americans again fell back, and a battle at White Plains was fought on October 28, 1776. Once more Washington retreated, but Howe, instead of aggressively pursuing the withdrawal, returned to Manhattan and captured Fort Washington in mid November, taking almost 3,000 prisoners. Four days later, Fort Lee, across the Hudson River from Fort Washington, was also taken.

The British gained control of New York harbor and the surrounding agricultural areas, and held New York City and Long Island until the war ended in 1783. The Americans had suffered significant casualties and lost important supplies, but Washington managed to withdraw the core of his army and avoided the decisive confrontation that could have ended the war.

General Lord Cornwallis continued to chase Washington's army through New Jersey until the Americans withdrew across the Delaware River into Pennsylvania in early December. With the campaign at an apparent conclusion for the season, the British entered winter quarters. Although Howe had missed several opportunities to crush the diminishing rebel army, he had killed or captured over 5,000 Americans. He controlled much of New York and New Jersey and was in a good position to resume operations in the spring, with the rebel capital of Philadelphia in striking distance.

The outlook of the Continental Army—and thus the revolution itself—was bleak. "These are the times that try men's souls," wrote Thomas Paine, who was with the army on the retreat. The army had dwindled to fewer than 5,000 men fit for duty and would be reduced to 1,400 after enlistments expired at the end of the year. Spirits were low, popular support was wavering, and Congress had abandoned Philadelphia in despair.

Emanuel Leutze's 1851 painting Washington Crossing the Delaware is an iconic image of American history.

Washington reacted by taking the offensive, stealthily crossing the Delaware on Christmas night and capturing nearly 1,000 Hessians at the Battle of Trenton on December 26, 1776. Cornwallis marched to retake Trenton but was outmaneuvered by Washington, who successfully attacked the British rearguard at Princeton on January 3, 1777. Washington then entered winter quarters at Morristown, New Jersey, having retaken most of the colony from the British.

• New Jersey during the American Revolution

• Black, Jeremy. War for America: The Fight for Independence, 1775-1783. St. Martin's Press (New York) and Sutton Publishing (UK), 1991. ISBN 0-312-06713-5 (1991), ISBN 0-312-12346-9 (1994 paperback), ISBN 0-7509-2808-5 (2001 paperpack).
• Boatner, Mark Mayo, III. Encyclopedia of the American Revolution. New York: McKay, 1966; revised 1974. ISBN 0-8117-0578-1.
• Buchanan, John. The Road to Valley Forge: How Washington Built the Army That Won the Revolution. Wiley, 2004. ISBN 0-471-44156-2.
• Fischer, David Hackett. Washington's Crossing. New York: Oxford University Press, 2004. ISBN 0-19-517034-2. Winner of the 2005 Pulitzer Prize for History.
• McCullough, David. 1776. New York: Simon & Schuster, 2005. ISBN 0-7432-2671-2.
• Schecter, Barnet. The Battle for New York: The City at the Heart of the American Revolution. 2002. (website)
• Wood, W. J. Battles of the Revolutionary War, 1775-1781. Originally published Chapel Hill, N.C.: Algonquin, 1990; reprinted by Da Capo Press, 1995. ISBN 0-306-80617-7 (paperback); ISBN 0-306-81329-7 (2003 paperback reprint).

v • d • e New York in the American Revolutionary War

Pre-war: Sons of Liberty 1770: Battle of Golden Hill 1775: Capture of Fort Ticonderoga – Invasion of Canada 1776: New York and New Jersey campaign – Battle of Long Island – New York Prison Ships Begin – Landing at Kip's Bay – Battle of Harlem Heights – Great Fire of New York – Execution of Nathan Hale – Battle of Valcour Island – Battle of Pell's Point – Battle of White Plains – Battle of Fort Washington 1777: Meigs Raid – Saratoga campaign – Battle of Ticonderoga – Battle of Hubbardton – Battle of Fort Ann – Battle of Oriskany – Battle of Saratoga – Battle of Freeman's Farm – Battle of Bemis Heights 1778: Setauket Spy Ring Launched – Battle of Cobleskill – West Point established – Cherry Valley massacre 1779: Battle of Stony Point – Sullivan Expedition – Battle of Newtown 1780: First Purple Heart – André Capture Reveals Traitor Benedict Arnold 1781: HMS Culloden Runs Aground at Montauk – Washington Calls Off Invasion of New York to Support Yorktown 1782: Washington's Headquarters at Newburgh – Newburgh letter – 1783: Newburgh conspiracy – British Evacuate New York – Washington's Farewell to His Officers