The China–United States trade war refers to the ongoing introduction of tariffs on goods traded between China and the United States. In April 2018, the U.S. imposed tariffs on steel and aluminum imports from China, as well as Canada, and countries in the European Union. On July 6, 2018, the United States imposed 25% tariffs on $34 billion worth of Chinese goods as part of U.S. President Donald Trump' s new tariffs policy, which then led China to respond with similar sized tariffs on U.S. products. Soon after on July 10, following an order from U.S. President Donald Trump, the U.S. Trade Representative (USTR) Office published a list of $200 billion in Chinese products to be subject to a newly proposed 10% tariff. China quickly responded to the announcement by blasting the proposed tariffs as "irrational" and "completely unacceptable." The Trump administration said the tariffs were necessary to protect national security and the intellectual property of U.S. businesses, and to help reduce the U.S. trade deficit with China.