Marcos’s Japan Visit And Philippines-China Relations – Analysis

Though the Philippines and Japan have long committed to strengthening their bilateral partnership rooted in shared democratic values and mutual strategic interests, the  scheduled visit of President Ferdinand Marcos Jr. to Japan from May 26 to 29 comes at a particularly sensitive moment when the Indo-Pacific security environment is being reshaped by intensifying great power competition and when the Philippines’ relations with China remain fragile, contested, and in urgent need of stabilization.

The arranged ceremonial meetings with Emperor Naruhito and Prime Minister Sanae Takaichi will carry important symbolic weight. But the substantive outcomes of this visit will be on defense cooperation, maritime security, and energy development.  These issues must be understood not only in terms of what they offer the Philippines bilaterally but also in terms of how they affect the broader effort to manage and stabilize Philippines-China relations. 

Defense Cooperation: Building Capability Without Burning Bridges

There is no doubt that Japan’s planned transfer of Abukuma-class Destroyer Escorts to the Philippine Navy is a tangible contribution to Philippine maritime defense capability. These vessels will enable the Philippines to patrol its waters more effectively, assert a stronger presence in contested zones, and enforce its sovereign rights as recognized under the United Nations Convention on the Law of the Sea (UNCLOS). But defense cooperation, however welcome, is a double-edged sword that must be wielded with strategic caution.

The possibility of granting Japan access to Philippine military bases must be approached with prudence. Defense assistance should strengthen Philippine sovereignty, not compromise it, and should build genuine self-reliance rather than entrench strategic dependency on any external power. The Philippines cannot afford to be drawn into conflicts beyond its direct national interest, particularly in contentious flashpoints such as the Taiwan Strait. 

It is imperative that every defense arrangement agreed to during this visit be evaluated against a clear standard: does it serve the Filipino people, or does it serve the strategic calculations of others? The two are not always the same.

Maritime Security: Asserting Rights While Preserving Dialogue

Maritime security is set to take center stage during President Marcos’ visit to Japan. Both governments are expected to underscore the significance of the 2016 South China Sea Arbitral Award, which marks its 10th anniversary this year. Discussions will likely extend to safeguarding freedom of navigation in the East China Sea and the Taiwan Strait. There is also the possibility of exploring mechanisms for coordination with Taiwanese authorities on maritime boundary management.

These are legitimate concerns for the Philippines, whose Exclusive Economic Zone (EEZ) and continental shelf have been the subject of  jurisdictional challenge. The Philippines has the legal basis to assert its maritime rights, and its deepening partnership with Japan offers a practical avenue to do so. Yet the manner in which these rights are asserted matters enormously for the stability of the wider region and Philippines-China relations.

Such moves will also be closely watched in Beijing. The Philippines and China have invested considerable diplomatic effort in building mechanisms for managing their South China Sea disputes, including the Bilateral Consultative Mechanism (BCM), through which both countries committed to promote pragmatic cooperation, sustain friendship, and pursue common prosperity. 

These gains, built through years of consultations, must not be destroyed overnight by actions that Beijing perceives as provocative or as evidence of an emerging containment coalition. Maritime cooperation with Japan should be carefully framed as a stabilizing endeavor, not a provocative one, and Philippine officials must be prepared to communicate this framing directly and consistently to their Chinese counterparts.

Economic Corridor and Energy Security: Opportunity With Obligation

The Luzon Economic Corridor represents one of the most substantive and potentially transformative outcomes of the Marcos-Japan engagement. Infrastructure investment, semiconductor collaboration, and Japanese support for Small Modular Reactors could meaningfully address the Philippines’ chronic energy insecurity, create employment, and modernize key industries. 

Japan is a reliable development partner with a long track record of responsible investment in the Philippines.   Thus, there is genuine opportunity here to reduce Philippine dependence on volatile energy imports while positioning the country for more competitive participation in the global semiconductor supply chain.

Yet, every opportunity carries obligations. Overreliance on any single foreign partner, whether Japan, the United States, or China, could ultimately undermine the long-term economic resilience and strategic autonomy that the Philippines so urgently needs. Negotiations must prioritize local capacity-building, technology transfer, and sustainable development. 

It is also worth noting that China remains the Philippines’ largest trading partner and a significant source of tourism and investment. Any economic orientation that damages Philippine-China commercial relations will carry real costs for Filipino workers, businesses, and communities. Foreign partners should complement the Philippine economic future, not dominate it, and certainly not redirect it in ways that destabilize broader regional economic interdependence.

The Imperative of Stabilizing Philippine-China Relations

An important aspect of the Marcos Japan visit is not what it delivers bilaterally between Manila and Tokyo, but how it will shape Beijing’s perceptions of Philippine strategic intentions. Though the Philippines and China have committed to pursuing comprehensive strategic cooperation in the 21st century, disputes in the South China Sea continue to disrupt their efforts toward better bilateral ties. The Japan visit, if not carefully managed in its messaging and implementation, risks being interpreted in Beijing as a further tilt toward an emerging anti-China alignment in the Western Pacific. That interpretation, whether accurate or not, would deal a serious blow to the already-strained effort to stabilize Philippine-China relations. 

It is therefore imperative that President Marcos use this visit not only to deepen ties with Japan but also to signal clearly to Beijing that  the Philippines remains open to dialogue.

There is a need for the Philippines and China to revitalize and expand their existing mechanisms for managing bilateral tensions, particularly those related to the South China Sea. The two countries have gone a long way through the BCM to build confidence, promote common understanding, and pursue pragmatic cooperation. 

Those gains must not be abandoned. Both parties must avoid unilateral actions that could undermine their bilateral efforts and to implement fully the three guiding principles embedded in UNCLOS, the Declaration on the Conduct of Parties in the South China Sea (DOC), and the ongoing Code of Conduct (COC) negotiations.  These three principles are: 1) the Principle of Duty to Cooperate, which encourages pragmatic cooperation to avoid violent conflicts; 2) the Principle of Without Prejudice, which respects each party’s national positions while pursuing common interests; and 3) the Principle of Due Regard, which urges self-restraint to avoid actions that offend the national sensitivities of other parties. 

Applying these principles in good faith is an act of statesmanship. Philippine national interest lies in reducing tensions, not inflaming them, and in preserving the space for dialogue even as the Philippines deepens its defense ties with Japan.

Conclusion

Marcos’s second visit to Japan is a pivotal moment for Philippine diplomacy as its outcomes will reverberate far beyond the bilateral relationship with Tokyo. It offers genuine opportunities to enhance defense capability, improve energy security, and expand economic cooperation with one of Asia’s most capable and reliable partners. 

But it also carries the risk of deepening misperceptions in Beijing and of accelerating a regional polarization that serves neither Philippine interests nor the cause of peace in the Indo-Pacific. The Philippines and China should be reminded that while both are independent republics with their own national interests, they also have a bilateral commitment to pursue comprehensive strategic cooperation in order to advance their mutual interests.

The Philippines must, therefore, pursue a foreign policy that is genuinely balanced: assertive in defending its sovereignty and maritime rights, prudent in managing its external partnerships, and unwavering in its commitment to stabilizing rather than inflaming its relations with China. 

Agreements signed in Tokyo must be complemented by sustained diplomatic engagement in Beijing. Defense gains must be matched by renewed investment in bilateral confidence-building with China. 

Economic partnerships with Japan must not come at the cost of the commercial and people-to-people ties that bind the Philippines and China together. Regional security has to be pursued without escalation, and constructive relations with China must not be sacrificed even as ties with Japan grow stronger. 

• Expanded version of a piece published in Manila Times on May 2026.