1866, Chile and Bolivia signed a border treaty, which stipulated that the 24th south latitude line was the border between the two countries, and the tariffs on all mineral products and export products between the 23rd south latitude line and the 25th south latitude line were shared equally by the two countries. In the same year, the joint venture saltpeter company of Chile and Britain signed a contract with Bolivia to obtain the mining right of Antofagasta.
1874, Bolivia signed a new Covenant with Chile, stipulating that the Chilean government would give up all rights in the area north of 24 degrees south latitude, and Bolivia agreed not to raise the current tax rate of Chilean companies for 25 years.
1878, the Bolivian government decided to unilaterally increase the tax of Chilean-British mining companies in order to raise military expenditure. However, the mining company refused to pay according to the treaty 1874. The Bolivian government decided to confiscate all its assets and auction them publicly.
In retaliation, on February 1879, Chile, with the support of Britain, sent troops to occupy Antofagasta, Bolivia's largest port. Peru and Bolivia have close ties, and the two sides secretly concluded a military alliance treaty in 1873.
After the crisis broke out, the governments of Peru and Bolivia issued military mobilization orders to the country and actively purchased arms from Europe. Chile officially declared war on Peru and Bolivia on April 5, 1979.
The impact of the Pacific War:
The defeated Peru and Bolivia were hit hard. For Peru, this is a humiliating failure, which discredits politicians. "After the signing of the treaty, Peru fell into a civil war between caceres and iglesias.
1884 In June, caceres finally recognized the Ankong Treaty. 1885 in February, caceres finally defeated iglesias. 1886 in June, caceres was elected president of Peru, and the civil strife in Peru ended. 1884 In August, when the last batch of Chilean troops left Peru, Peru was bankrupt economically and politically.
Refer to the above? Baidu Encyclopedia-Pacific War