Washington, Treaties of

Any of four international agreements. (1) Between the USA and Britain 1846, by which the boundary west of the Rocky Mountains was established. (2) Between the USA and Britain 1854 concerning fisheries, duties, and navigation in British North America; often called the Reciprocity Treaty. (3) Between the USA and Britain 1871 for the settlement of all causes of difference. (4) The Washington Conference agreement 1922, limiting international naval competition.