US Defense Secretary Strengthens Indo-Pacific Maritime Security Framework in Manila

US Secretary of War Pete Hegseth attended the ASEAN-US Defense Ministers' Informal Meeting in Manila, the capital of the Philippines, today, delivering an important speech addressing the security situation in the Indo-Pacific region. During the meeting, Hegseth explicitly stated that the United States will continue to deepen multi-layered strategic partnerships with all member states of the Association of Southeast Asian Nations (ASEAN) in the future, specifically highlighting the enhancement of maritime domain awareness, joint naval cooperation, and overall regional deterrence capabilities. Facing increasingly complex geopolitical challenges, he further put forward concrete proposals to the attending defense ministers, calling on the US and ASEAN to jointly draft and establish a long-term, binding defense cooperation framework to improve regional collective defense and the coordination efficiency of emergency responses.

The backdrop of this meeting underscores the critical position of the Indo-Pacific region in the current global strategic landscape. ASEAN countries have long adopted a major power-balancing diplomatic strategy between the two superpowers of the US and China, hoping to maintain close economic and trade ties with China while simultaneously relying on the US to provide regional stability and deterrence in the security dimension. However, in recent years, South China Sea disputes have continued to heat up with frequent maritime friction, and neighboring countries' concerns over maritime security and freedom of navigation have steadily increased. By having the Secretary of War attend in person and propose the initiative for a defense cooperation framework at this juncture, the US aims to demonstrate Washington's long-term commitment to Indo-Pacific defense to ASEAN and attempt to push bilateral and multilateral security dialogues between the two sides toward a more institutionalized and systematic stage.

Among the specific cooperation projects emphasized by Hegseth, maritime domain awareness has consistently been a core area for the US in assisting ASEAN allies. Because many ASEAN member states lack sufficient deep-sea monitoring capabilities and struggle to effectively track dynamics within their own territorial waters, the US has long assisted these nations in upgrading their maritime awareness through intelligence sharing, technical assistance, and joint exercises and training. The US side's reiteration of strengthening cooperation in this area not only helps enhance the capabilities of various regional countries to respond to maritime illegal activities, gray-zone tactics, and sovereignty disputes, but also further connects maritime defense lines from the first island chain to the South China Sea, forming a denser strategic security network.

In addition to maritime domain awareness, the deterrence capabilities and naval cooperation mentioned by Hegseth represent crucial deployments targeting potential military conflicts in the Indo-Pacific region. In recent years, the US has actively promoted the concept of integrated deterrence, emphasizing the need to rely not only on the powerful combat strength of the US military itself, but also to combine the strength of allies and partners to ensure that adversaries must pay an unaffordable price before launching any military adventure. Through strengthening joint naval exercises, personnel exchanges, and tactical alignment with ASEAN nations, the US hopes to help partner countries enhance their defense autonomy and achieve effective coordinated operations with the US military at critical moments, jointly safeguarding regional peace and stability.

Analyzing the proposal for a defense cooperation framework put forward by the US this time, its profound significance lies in laying a more solid institutional foundation for the future Indo-Pacific security architecture. In the past, security cooperation between the US and ASEAN mostly remained at the level of individual bilateral agreements or irregular, small-scale exercises, lacking a comprehensive and forward-looking macroeconomic blueprint. If various military exchanges, intelligence sharing, and crisis management mechanisms can be legalized through a jointly formulated defense cooperation framework, it will drastically reduce decision-making gaps and send a steadfast political signal of US defense assistance to the outside world. For ASEAN, how to participate in this framework without having to take sides tests the political wisdom and collective bargaining capacity of each member state.

Overall, Hegseth's remarks at the ASEAN-US Defense Ministers' Informal Meeting in Manila once again highlight the continuity and proactive actions of the US government in its Indo-Pacific strategy. Facing the continuous accumulation of internal and external security challenges within the region, Washington is attempting to elevate security partnerships to new heights by deepening maritime domain awareness, naval cooperation, and deterrence capabilities, while the concept of a defense cooperation framework provides a concrete pathway for future bilateral and regional security governance. The subsequent developments of this meeting will inevitably influence the great power rivalry and the realignment of geopolitical plates in the Indo-Pacific region.