Anglo-Scottish border part of Scotland again. Berwick's MP Anne-Marie Trevelyan has resisted any change, arguing that: "Voters in Berwick-upon-Tweed do not believe it is whether they are in England or Scotland that is important.". At the River Tweed the border runs down the middle of the river, however between the villages of Wark and Cornhill the Scottish border comes south of the river to enclose a small riverside meadow of approximately to . This piece of land is known as the Ba Green. It is said locally that every year the men of Coldstream (to the North of the river) would play
Red River of the South formed part of the US–Mexico border from the Adams–Onís Treaty (in force 1821) until the Texas Annexation and the Treaty of Guadalupe Hidalgo. The Red River is the second-largest river basin in the southern Great Plains. It rises in two branches in the Texas Panhandle and flows east, where it acts as the border between the states of Texas and Oklahoma. It forms a short border between Texas and Arkansas before entering Arkansas, turning south near Fulton, Arkansas, and flowing into Louisiana, where it flows into the Atchafalaya River. The total length of the river is , with a mean