Although Trump is prepared to implement 25% tariff for Japan and South Korea, it has also left room. If Japan and South Korea are willing to open up their still closed trade markets to the United States and eliminate tariff, non-tariff policies and trade barriers against the United States, the United States may consider making adjustments to the contents of this letter. In human terms, if Japan and South Korea further open up to the United States, the United States can reduce tariffs by 25%. However, if Japan and South Korea increase retaliatory tariffs, the United States will continue to raise them at 25%.