...South Korea’s new president, Lee Jae Myung, sent special envoys to Australia and Germany to discuss defense and trade issues, and plans on dispatching delegations to several others. Brazil and India announced plans to increase their bilateral trade by 70 percent, to $20 billion. Indonesia says it is nearing a treaty with the European Union that would drop most tariffs on both sides to zero. And in Vietnam, which Mr. Trump said had accepted 20 percent tariffs on its goods headed to the United States before last week’s letters, the deputy trade minister emphasized efforts to reduce her country’s reliance...