Northern theater of the American Revolutionary War after Saratoga

BelligerentsGreat Britain

Haudenosaunee

• • Mohawk
  • Seneca
  • Cayuga

United States
France
Vermont Republic

Haudenosaunee

• • Oneida

Commanders and leadersSir Henry Clinton
Frederick Haldimand
John Butler
Walter Butler
Sir George Collier
Joseph Brant
Sayenqueraghta
CornplanterGeorge Washington
John Sullivan
James Clinton
Jacob Klock
Abraham Ten Broeck
Thomas Hartley

The northern theater of the American Revolutionary War after Saratoga consisted of a series of battles between American revolutionaries and British forces, from 1778 to 1782 during the American Revolutionary War. It is characterized by two primary areas of activity. The first set of activities was based around the British base of operations in New York City, where each side made probes and counterprobes against the other's positions that sometimes resulted in notable actions. The second was essentially a frontier war in Upstate New York and rural northern Pennsylvania that was largely fought by state militia companies and some Indian allies on the American side, and Loyalist companies supported by Indians, British Indian agents, and occasionally British regulars. The notable exception to significant Continental Army participation on the frontier was the 1779 , in which General John Sullivan led an army expedition that drove the tribes among the Haudenosaunee allied with the British out of New York. The warfare amongst the factions of the Haudenosaunee Confederacy was particularly brutal, turning much of the Confederation populations into refugees

The only other notable actions occurred in New England. A combined American-French attempt was made to drive the British out of Newport, Rhode Island. The Battle of Rhode Island ended badly when the French fleet abandoned the effort; the failure did some damage to American–French relations. In 1779, the British established a base on the Penobscot River in the District of Maine with the intent of establishing a Loyalist presence there. The state of Massachusetts responded with the amphibious , which ended in complete disaster

The British continued a process of raiding the New England coastal communities. One such raid led to a skirmish at Freetown, Massachusetts, while others descended on Massachusetts and Connecticut coastal communities. In the 1781 Battle of Groton Heights, the British were led by Connecticut native Benedict Arnold, who did substantial damage to the town.