Most countries are limited by their natural resources and ability to produce certain goods and services. They trade with other countries to get what their population needs and demands. However, trade isn't always conducted in an amenable manner between trading partners. Policies, geopolitics, competition, and many other factors can make trading partners unhappy.

One of the ways governments deal with trading partners they disagree with is through tariffs. A tariff is a tax imposed by one country on the goods and services imported from another country to influence it, raise revenues, or protect competitive advantages.