Treaty of Ancón
| Treaty of Friendship and Peace between the Republics of Chile and Peru | |
|---|---|
| Type | Peace treaty |
| Signed | 20 October 1883 |
| Location | Ancón, Peru |
| Condition | Ratification by Chile on 12–13 January and Peru on 8 March 1884 |
| Signatories |
|
| Parties | |
| Depositary | Chilean and Peruvian Governments |
| Languages | Spanish |
The Treaty of Ancón was a peace treaty signed by Chile and Peru on 20 October 1883, in Ancón, near Lima. It was intended to settle the two nations' remaining territorial differences at the conclusion of their involvement in the War of the Pacific and to stabilise post-bellum relations between them.
Under the treaty's terms, Chile gained control over Tarapacá. Chile was also to retain the conquered provinces of Tacna and Arica for ten years, after which their fate was to be decided by a plebiscite, which was never held. The Tacna–Arica question would only be settled in 1929, through the mediation of the United States under President Herbert Hoover. This treaty, known as the Treaty of Lima, ceded Arica to Chile, while Peru regained Tacna and received USD $6 million indemnity and other concessions.