Tariff
A tariff is a tax on imports or exports between sovereign states. It is a form of regulation of foreign trade. It is a policy that taxes foreign products to encourage or protect domestic industry. It helps limit trade deficits. The tariff is historically used to protect infant industries and to allow import substitution industrialization.
Trump tariffs
On March 22, 2018, Trump signed a memorandum under the Section 301 of the Trade Act of 1974, instructing the United States Trade Representative (USTR) to apply tariffs of $50 billion on Chinese goods. Trump stated that the tariffs would be imposed due to Chinese theft of U.S intellectual property. Trump said that his planned tariffs on Chinese imports would make the United States "a much stronger, much richer nation." However, the steps toward imposing the tariffs led to increased concerns of a global trade war.