List of territorial disputes

Columns: Territory | Former claimants | Dispute started | Dispute settled | Notes
Alaska boundary dispute | United States Canada | 1821 | 1903 | Disputed between the United States and Canada ( then a British Dominion with its foreign affairs controlled from London ) . The dispute had been going on between the Russian and British Empires since 1821 , and was inherited by the United States as a consequence of the Alaska Purchase in 1867 . It was resolved by arbitration in 1903 with a delegation that included 3 Americans , 2 Canadians , and 1 British delegate that became the swing vote . By a 4 to 2 vote , the final resolution favored the American position . Canada did not get an outlet from the Yukon gold fields to the sea . The disappointment and anger in Canada was directed less at the United States , and more at the British government for betraying Canadian interests in pursuit of a friendly relationship between Britain and the United States | Aroostook War | United States British North America | 1838 | 1842 | Disputed border between the state of Maine and the provinces of New Brunswick and Lower Canada | Atacama border dispute | Bolivia Chile | 1879 | 1904 | Guaíra Falls/Sete Quedas | Brazil Paraguay | 1872 | 1980 | The disputed islands were submerged by the reservoir of Itaipú | Chamizal dispute | United States Mexico | 1898 | 1963 | Disputed border within the El Paso / Ciudad Juárez region | Cresap 's War | Maryland Pennsylvania | 1730 | 1767 | Dispute over the northern border of the Province of Maryland and southern border of Province of Pennsylvania , particularly west of the Susquehanna River . Settled by the drawing of the Mason-Dixon line | New Hampshire Grants / Vermont | New Hampshire/New York/Vermont | 1749 | 1791 | In 1664 King Charles II decided the west bank of the Connecticut River was the eastern boundary of New York , so that that province included all of what later became the state of Vermont . During 1749-64 , Governor Benning Wentworth of New Hampshire issued well over a hundred grants , offering lands for sale west of the river in what would become Vermont . In 1764 , King George III attempted to end the dispute by ruling that the region belonged to New York . But New York would not recognize the property claims of numerous settlers whose claims were based on Wentworth 's grants , so local governments and militias resisted New York 's rule . In 1777 , the politicians of the disputed territory declared it independent of New York , Britain , and New Hampshire , calling it the State of Vermont . Vermont existed for 14 years as an unrecognized de facto independent country , considered by New York to be a district in rebellion . Negotiations between New York and Vermont in 1790 removed impediments to Vermont 's admission to the Union in 1791

Example questions:
Who are the Americas historical territorial settled dispute claimants whose notes person died on 6 February 1685 ? | What is the Americas historical territorial settled dispute territory whose notes city hosts the annual Sun Bowl college football post-season game ? | Who are the former Americas historical territorial settled dispute claimants of the territory that was resolved through papal mediation ? | What is the Americas historical territorial settled Dispute settled year whose former claimant was initially colonized by Dutch traders at Zwaanendael ?

Answers:
New Hampshire/New York/Vermont | Chamizal dispute | Argentina Chile | 1921