Presidents of the United States of America and China spoke over the phone, amid a worsening trade war between the two nations. News of the conversation is being seen as positive movement towards resolution of the tariff battle between the two economic powers which has roiled world markets. The two world leaders are expected to meet on the sidelines of the upcoming G20 summit. Commenting on the conversation, US President Donald Trump said that his relationship with China's Xi Jinping is very good. In response, Beijing reiterated that legitimate concerns during trade talks must be addressed in a balanced way.