Despite the large distance, Chile and the USA were linked by economic ties, which had huge impact on diplomatic relations between the two countries. Copper is the greatest wealth as well as Chile’s main export, and the largest amount of copper was exported to the United States. For this reason, any conflict with copper in the background led to serious diplomatic tensions between the countries. One of the reasons for such frictions was tax, which had significant impact on the amount of exports and the price of copper. Therefore, both governments carefully monitored any change in taxes. The goals of this article is to present some disputes in Chilean‑American relations within the twentieth century, which originated from taxes. The main focus was put on prohibitive duty used by the United States.

Despite the large distance, Chile and the USA were linked by economic ties, which had huge impact on diplomatic relations between the two countries. Copper is the greatest wealth as well as Chile’s main export, and the largest amount of copper was exported to the United States. For this reason, any conflict with copper in the background led to serious diplomatic tensions between the countries. One of the reasons for such frictions was tax, which had significant impact on the amount of exports and the price of copper. Therefore, both governments carefully monitored any change in taxes. The goals of this article is to present some disputes in Chilean‑American relations within the twentieth century, which originated from taxes. The main focus was put on prohibitive duty used by the United States.