CommentTo Lam recasts diplomacy amid rising US-China dominanceVietnamese President and Communist Party chief To Lam gives a keynote address at the Shangri-La Dialogue security summit in Singapore on May 29. © ReutersTORU TAKAHASHIJune 28, 2026 13:37 JSTTOKYO -- The Shangri-La Dialogue, Asia's premier defense forum held every May or June in Singapore, is known for attracting distinguished keynote speakers. This year's lineup, however, included a surprising addition: To Lam, Vietnam's president and Communist Party chief.