information:extraction
Peace treaty between Chile and Peru

On 20 October 1883, hostilities between Chile and Peru formally came to an end under the Treaty of Ancón, whose terms had Peru formally cede Tarapacá Province to Chile, and the use of the guano and nitrate resources to repay Peru's debts were regulated. Chile was also to occupy the provinces of Tacna and Arica for 10 years, when a plebiscite was to be held to determine nationality. For decades thereafter, the two countries failed to agree on the terms of the plebiscite. Finally, in 1929, mediation under US President Herbert Hoover caused the Treaty of Lima to be signed by which Chile kept Arica, and Peru reacquired Tacna.