China’s leader Xi Jinping started a week of diplomacy in Southeast Asia with a visit to Vietnam, signaling China’s commitment to global trade.

Xi Jinping has warned there will be “no winners” from Donald Trump’s trade war as the Chinese president embarks on a diplomatic tour of Southeast Asia this week. The warning was delivered in an editorial jointly published in Chinese and Vietnamese media ahead of a trip which experts say Xi will use to portray his country as a “responsible” superpower—in contrast to the United States under President Trump.