Singapore defense summit opens as Iran war, Taiwan tensions loom

Singapore’s Shangri-La Dialogue is opening with a sharper strategic test than a typical regional security forum. As ministers, generals, intelligence chiefs and arms makers gather at the Shangri-La Hotel for the 23rd edition of Asia’s premier defence summit, the war in Iran, cross-strait tensions over Taiwan and doubts about Washington’s ability to sustain commitments in Asia will hang over every speech and hallway conversation.

The International Institute for Strategic Studies says the Dialogue will run from 29 to 31 May 2026, with Vietnam’s President Tô Lâm delivering the keynote address at 20:00 SGT on Friday 29 May. U.S. Defense Secretary Pete Hegseth is scheduled to speak at 08:30 SGT on Saturday 30 May, and his remarks are likely to be the most closely watched of the summit. Defense officials across the region will be listening for reassurance that Washington can keep its attention on Asia even as it handles a major war in the Middle East.

That pressure makes the Singapore gathering more than a ceremonial opening to the security calendar. The Dialogue has been convened since 2002, was not held in 2020 or 2021 because of the pandemic, and has become a regular venue for both public messaging and private probing. The IISS says it draws decision-makers from the Asia-Pacific, North America, Europe and the Middle East for plenary debates and bilateral discussions, which gives it unusual weight at a moment when governments are trying to measure one another’s resolve.

The summit’s value is partly in what it revealed last year. The 2025 Dialogue ran from 30 May to 1 June and featured major addresses by Emmanuel Macron, Anwar Ibrahim and Pete Hegseth. Singapore’s Ministry of Defence said that event drew 47 countries, 40 ministerial-level delegates, more than 20 chief-of-defence-forces-level delegates and more than 20 senior defence officials. That scale underscores why the forum matters when crisis management is as important as alliance rhetoric.

This year, the question is whether Washington can reassure partners while juggling multiple flashpoints at once. Taiwan remains a live issue, and any U.S. statement on regional strategy will be read well beyond Singapore. For allies and rivals alike, the Dialogue will serve as a stress test of U.S. credibility in Asia, with the answer shaped as much by the war in Iran as by what is said in the conference hall.