It is a true statement.
Step-by-step explanation:
Tariffs in term of international relations are used in business dealings with other international powers to sanction the conflicts between them.
This increases the prices during the trade off and often also makes it hard to trade with the nations.
This is why there are many organisations that deal with such conflicts and they allow some nations that have less conflicts with each other to enter free trade deals.
This is what is meant by free trade and border less trade that is away from all the limitations of tariffs.