Question: Joshua Hett Smith House (demolished), also known as Treason House, was a historic house in West Haverstraw, New York, during the American Revolutionary War, which General met at the house with British Major John André, while plotting to surrender the fort at West Point, who was the general during the American Revolutionary War, who fought for the American Continental Army, and later defected to the British Army?

Context articles: Thomas Hickey (soldier)
Benedict Arnold
West Point Band
Fort Putnam
List of Continental Army units
Joshua Hett Smith House
Siege of Yorktown
Battle of Bull's Ferry
John André
Siege of Fort Stanwix

Thomas Hickey (hanged on June 28, 1776) was a Continental Army soldier in the American Revolutionary War, and the first person executed for treason against what would become the United States.
 Born in Ireland, he came to America as a soldier in the British Army and fought as personal assistant to Major General William Johnson in the Seven Years' War, but deserted to the other side when the Revolution broke out.
 He became part of the Life Guard, which protected Gen. George Washington, his staff and the Continental Army's payroll.
 Hickey was jailed for passing counterfeit money in New York, tried and executed for mutiny and sedition, and he may have been involved in an assassination plot against George Washington in 1776.
Benedict Arnold (January 14, 1741 [O.S. January 3, 1740] June 14, 1801) was a general during the American Revolutionary War, who fought for the American Continental Army, and later defected to the British Army.
 While a general on the American side, he obtained command of the fortifications at West Point, New York (which after 1802 would become the site of the U.S. Military Academy), overlooking the cliffs at the Hudson River (upriver from British-occupied New York City), and planned to surrender them to British forces.
 This plan was exposed in September 1780.
 He was commissioned into the British Army as a brigadier general.
The West Point Band (also known as the U.S. Military Academy Band or USMA Band) is the U.S. Army's oldest active band and the oldest unit at the United States Military Academy, traces its roots to the American Revolutionary War.
 At that time, fifers and drummers were stationed with companies of minutemen on Constitution Island, across the river from West Point.
 In 1778, General Samuel Holden Parsons' 1st Connecticut Brigade crossed the Hudson River and established West Point as a permanent military post.
 After the American Revolution, Congress disbanded most of the Continental Army, but “the 55 men at West Point,” members of the 2nd Continental Artillery, remained as they were.
 Among their ranks stood at least one drummer and one fifer, who alone maintained the tradition of military music at West Point.
Fort Putnam was a military garrison during the Revolutionary War at West Point, New York, United States.
 Built by a regiment of Colonel Rufus Putnam's 5th Massachusetts Regiment, it was completed in 1778 with the purpose of supporting Fort Clinton, which sat on the edge of the Hudson River about a 3/4 of a mile away.
 The fort was rebuilt and enlarged in 1794 before falling into disuse and disrepair as the military garrison at West Point became obsolete in the early mid-19th century.
 It underwent a major preservation as a historical site in 1909, and has been continually in the process of preservation since.
 Sitting at an altitude of 500 feet above sea level, it was West Point's largest garrison during the Revolutionary War.
 The Fort is under the supervision of the West Point Museum Director, David M. Reel and is operated by the United States Army Garrison, West Point.
 Access to the Fort is seasonal and as summer staff are available.
The Continental Army was the national army of first the Thirteen Colonies, and then the independent United States, during the American Revolutionary War, established by a resolution of the Congress on June 14, 1775, three days before the Battle of Bunker Hill, where it saw its first action under that title.
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 The Continental Congress took a number of steps in the spring of 1775 to create the army in response to the Battles of Lexington and Concord in April and the seizure of Fort Ticonderoga in May.
 The units composing the Continental Army changed frequently, especially in the first two years of the war.
 From 1777 to the close of the war, the organization of the Continental Army became progressively more systematic and sophisticated.
 The Continental Army that served at Yorktown in 1781 bore very little resemblance to the Continental Army that blockaded Boston in 1775.
Joshua Hett Smith House (demolished), also known as Treason House, was a historic house in West Haverstraw, New York.
 It stood on a hill overlooking the King's Ferry at Stony Point, an important crossing of the Hudson River.
 During the American Revolutionary War, General Benedict Arnold met at the house with British Major John André, while plotting to surrender the fort at West Point.
 Later, the house had a brief tenure as headquarters for General George Washington.
The Siege of Yorktown, also known as the Battle of Yorktown, the Surrender at Yorktown, German Battle or the Siege of Little York, ending on October 19, 1781, at Yorktown, Virginia, was a decisive victory by a combined force of American Continental Army troops led by General George Washington and French Army troops led by the Comte de Rochambeau over a British Army commanded by British peer and Lieutenant General Charles Cornwallis.
 The culmination of the Yorktown campaign, the siege proved to be the last major land battle of the American Revolutionary War in the North American theater, as the surrender by Cornwallis, and the capture of both him and his army, prompted the British government to negotiate an end to the conflict.
 The battle boosted faltering American morale and revived French enthusiasm for the war, as well as undermining popular support for the conflict in Great Britain.
The Battle of Bull's Ferry on 20 and 21 July 1780 saw two American brigades under Brigadier General Anthony Wayne attack a party of Loyalist Americans led by Thomas Ward.
 The Loyalists successfully defended a blockhouse against an ineffective bombardment by four American artillery pieces and a failed attempt to storm the position by Wayne's infantry.
 During the action, American light dragoons under Major Light Horse Harry Lee drove off a large number of cattle that were kept in the area for the use of the British army in New York City.
 The clash inspired British Major John André to write a satirical ballad entitled "The Cow Chace".
 The skirmish was fought at Bulls Ferry, New Jersey in the Northern theater of the American Revolutionary War after Saratoga.
 At this stage of the conflict only raids and minor actions occurred in the north.
John André (2 May 1750 – 2 October 1780) was a British Army officer hanged as a spy by the Continental Army during the American Revolutionary War for assisting Benedict Arnold's attempted surrender of the fort at West Point, New York to the British.
The Siege of Fort Stanwix (also known at the time as Fort Schuyler) began on August 2, 1777, and ended August 22.
 Fort Stanwix, in the western part of the Mohawk River Valley, was then the primary defense point for the Continental Army against British and Indian forces aligned against them in the American Revolutionary War.
 The fort was occupied by Continental Army forces from New York and Massachusetts under the command of Colonel Peter Gansevoort.
 The besieging force was composed of British regulars, American Loyalists, Hessian soldiers from Hesse-Hanau, and Indians, under the command of British Brigadier General Barry St. Leger and the Iroquois leader Joseph Brant.
 St. Leger's expedition was a diversion in support of General John Burgoyne's campaign to gain control of the Hudson River Valley to the east.