The country’s new president, in office for a little over a month, had just dispatched his senior deputies to Washington to try to work out a trade deal.

While South Korean imports to the U.S. face 25% tariffs, the same as Trump promised in April, the rate on Japan has been raised by 1 percentage point to 25%.

In letters so far to 14 countries, including smaller exporters to the United States such as Serbia, Thailand and Tunisia, Trump hinted at opportunities for additional negotiations, even while warning that reprisals would draw a like-for-like response.

The United States’ closest security allies in Asia, along with several Southeast Asian countries, have been given another three weeks to negotiate trade deals — or face higher tariffs.

Trump said on Tuesday that South Korea should be paying for its own military protection, suggesting the US ally needed to pay more for the US troop presence there, a day after the tariff announcement.

The yen took a hit on Tuesday from U.S. President Donald Trump reiterating his plan to impose 25% tariffs on goods from Japan and South Korea in the latest twist of his chaotic trade war. The Australian dollar charged higher after the country's central bank defied market expectations and left its cash rate steady at 3.

Asian shares rose Tuesday after stocks on Wall Street closed broadly lower as the White House stepped up pressure on major trading partners to make deals before punishing tariffs imposed by the U.S. take effect.