List of territorial disputes

Columns: Territory | Former claimants | Dispute started | Dispute settled | Notes
Delaware Wedge | Delaware Maryland Pennsylvania | 1750s | 1921 | A gore created when the borders of the colonies Maryland , Delaware , and Pennsylvania were defined . Dispute over the borders between the three colonies dates to the foundation of each during the middle 17th century . A series of defined lines and arcs were laid out by statute to settle the disputes , the most famous of which was the Mason-Dixon line . The Wedge was left out of all three colonies ( and later U.S. states ) , and remained a matter of dispute until it was formally resolved to assign the Wedge to Delaware in 1921 | Eastern shore of the Narragansett Bay | Colony of Rhode Island and Providence Plantations Plymouth Colony ( to 1691 ) Province of Massachusetts Bay ( from 1691 ) | 1636 | 1898 | Claimed by both Rhode Island and Plymouth Colony . Plymouth 's claim was inherited by the newly created Province of Massachusetts Bay when the latter was created in 1691 from the merger of earlier Massachusetts Bay and Plymouth Colonies . A royal decree in 1746 assigned the land to Rhode Island , but Massachusetts continued to press its claim until 1898 | New York - New Jersey Line War | New York New Jersey | 1701 | 1756 | Dispute over the southern border of Province of New York and the northern border of the Province of New Jersey . Raiding parties kidnapped and burned crops | Isla Martín García | Argentina Uruguay | 1879 | 1973 | After the Conquest of the Desert was formally launched in 1879 , many indigenous leaders captured were confined there . The island was transferred to Argentine Navy jurisdiction in 1886 . The island 's distance from the Uruguayan territory is less than two miles , and its jurisdictional status was formally established by the Treaty of Río de la Plata between Uruguay and Argentina on November 19 , 1973 | Cordillera del Cóndor-Cenepa River | Peru Ecuador | 1828 | 1998 | Cordillera of the Andes Boundary Case | Argentina Chile | 1881 | 1902 | After the signature of the Boundary treaty of 1881 between Chile and Argentina differing interpretations on whether the highest Andean peaks ( favouring Argentina ) or the continental divide ( favouring Chile ) was to be considered the boundary | Puna de Atacama dispute | Argentina Chile | 1889 | 1898

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