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 appealed to Vietnam to join China in upholding multilateral trade, as he begins a high-stakes diplomatic tour of the region’s major export-reliant economies in a bid to position his country as a stable partner in contrast to the United States.

Impeached South Korean leader Yoon Suk Yeol is due to attend the first hearing on Monday of his criminal trial to face charges that he led an insurrection when he declared martial law late last year and plunged the country into months of turmoil.