Asia’s main defence summit will open in Singapore later this week against a backdrop of Middle East conflict, Taiwan tensions and renewed questions over Washington’s strategic bandwidth.
The Shangri-La Dialogue will open in Singapore later this week with defence ministers, military chiefs and security officials facing a question that extends well beyond the Indo-Pacific: whether the United States can sustain credible commitments across Asia, Europe and the Middle East at the same time.
The annual forum, convened by the International Institute for Strategic Studies, will take place from 29 to 31 May and is widely regarded as Asia’s principal defence and security summit. The official IISS programme describes the meeting as a forum for ministers and senior officials to debate the region’s main security challenges, with bilateral discussions taking place alongside public sessions.
This year’s gathering is expected to be shaped less by formal agenda items than by the number of simultaneous crises affecting allied defence planning. Reuters reported on 25 May that war in Iran, strained US commitments in Asia and rising tensions over Taiwan are likely to dominate the summit.
That combination gives the Singapore meeting wider significance for European readers. The Indo-Pacific is not a separate theatre in strategic terms. US force posture in Asia affects American capacity in Europe; Middle East escalation affects energy markets, maritime security and defence planning; and pressure around Taiwan shapes the global balance between Washington and Beijing.
US Defence Secretary Pete Hegseth is expected to attract particular attention at the summit, with regional partners likely to assess not only what he says about China, but how convincingly Washington can reassure allies while managing other commitments. The issue is not whether the United States remains the dominant military power in the Indo-Pacific. It is whether partners believe its political and operational attention can be sustained when crises overlap.
That uncertainty has become more visible as European governments debate their own dependence on US security guarantees. For NATO allies, questions over American focus in Asia are directly relevant. If Washington is pressed harder in the Pacific or Middle East, European states may face additional pressure to assume greater responsibility for conventional deterrence, air defence, munitions production and military mobility on their own continent.
Taiwan will be central to that discussion. Beijing has continued to apply military and political pressure around the island, while Washington’s commitments to Taiwan remain a core test of US credibility in Asia. Even procedural issues, such as arms deliveries and defence support, are closely watched by regional governments because they indicate how quickly Washington can translate policy into capability. Taiwan said last week that it had not been told by the United States of any change to military sales, after reports raised questions over delays in arms deliveries.
China’s role at the summit will also matter. Shangri-La has often served as a controlled setting for confrontation, reassurance and signalling between major powers. If Beijing sends a senior delegation, smaller Asian states will watch for any shift in tone on Taiwan, maritime disputes and US military presence. If China’s representation is limited, that absence may itself be read as a signal about the state of regional dialogue.
For Southeast Asian countries, the strategic problem is more complicated than choosing between Washington and Beijing. Many governments rely on China as a major trading partner while depending, directly or indirectly, on the US security presence to balance regional power. The forum gives them an opportunity to press both major powers without committing publicly to one camp. Vietnam’s President To Lam is due to deliver the keynote address, a choice that reflects the importance of states trying to preserve room for manoeuvre between competing powers.
The Middle East will add another layer to the discussions. Conflict involving Iran has implications for oil flows, shipping routes, defence deployments and US military attention. Asian economies are heavily exposed to disruption in Gulf energy supplies, while European states face parallel concerns over maritime security, inflationary pressure and the availability of US assets. A security crisis in one region can therefore alter military calculations in another.
For Europe, the most important lesson from Shangri-La may not be any single speech. It is the evidence that allied security planning is increasingly cross-regional. A crisis around Taiwan would not remain an Asian problem. A prolonged US military focus on the Middle East would not be irrelevant to NATO. A weaker American posture in Europe would be noticed in Asia. These theatres are now connected by munitions stocks, naval deployments, air defence systems, political attention and industrial capacity.
The summit will therefore provide an early test of how defence leaders describe burden-sharing in a more congested strategic environment. Asian partners will want reassurance that Washington remains committed to the region. European governments will watch for signs that US priorities are shifting. Smaller states will look for evidence that major-power competition can still be managed without forcing immediate alignment.
The formal proceedings in Singapore may be diplomatic in tone, but the underlying issue is sharper. The United States is being asked to deter China, support European security, manage Middle East instability and maintain confidence among partners. The Shangri-La Dialogue will show how far that position is still seen as credible by those most exposed to the consequences.
