King Philip's War (1675-1678) was an armed conflict in colonial New England between an alliance of Native American nations and the English colonies of Plymouth, Massachusetts Bay, Connecticut, and Rhode Island. It is named for Metacomet, also known as King Philip, the Wampanoag sachem widely regarded as the principal leader of the Native alliance. The war is considered one of the deadliest conflicts, proportional to population, in American history, and its causes, conduct, and legacy remain subjects of historical interpretation. For background on the colonial and Native societies involved, see Massachusetts Bay Colony and Narragansett.
Historians broadly agree on the war's major events: its outbreak near Swansea, Plymouth Colony, in June 1675; the involvement of the Wampanoag, Narragansett, Nipmuc, and Pocumtuck peoples on one side and the United Colonies of New England on the other; the December 1675 Great Swamp Fight against the Narragansett; and Metacomet's death in August 1676, after which organized resistance largely collapsed in southern New England, though fighting continued longer in Maine and New Hampshire. Beyond this factual core, interpretation diverges considerably regarding the war's underlying causes, the proportionality and conduct of colonial military actions, the legal and moral status of Native land claims, and the war's long-term effects on Native sovereignty and population in the region. A fuller account of the conflict's background and course is provided at king-philips-war-history.