An example of tariffs in action
Depending on their scope and application, tariffs can be a source of tension between governments. If one country implements or raises tariffs on another country's goods, there's a risk that the second country will respond in kind.
In recent years, the U.S. and China have increased tariffs imposed on each other's products. The U.S. began raising tariffs in 2018 under President Donald Trump, notably implementing a 25% tariff on steel imported from China and raising duties on other materials and products. In turn, China implemented its own tariff hikes on a wide range of goods. The trade squabble between the two countries escalated quickly.