The Origins and Precursors of the War of the Pacific
Underlying Causes of the Conflict
As a primary factor, the border problem between Chile and Bolivia emerged. Chile claimed territory up to the 23rd parallel (north of Mejillones), while Bolivia's claim extended to the 26th parallel. Although a difference of three parallels might seem minor, it covered thousands of square miles. Further north, the land encompassing Iquique and Arica belonged to Peru.
The Importance of Nitrate Wealth
The rich nitrate deposits covering the land of Antofagasta, which was then owned by Bolivia, were exploited by foreign capital, primarily Chilean companies. This situation led to significant differences between the two countries until a treaty was signed in 1866. This agreement established that the boundary between...

