Japan Hosts Pacific Islands Defense Dialogue Amid Rising Regional Tensions

Tokyo is hosting the third Japan Pacific Islands Defense Dialogue (JPIDD) from February 22nd to 24th, 2026, bringing together defense ministers and representatives from 14 Pacific island nations. The conference underscores Japan’s growing role in regional security and its commitment to bolstering defense cooperation with island nations in the face of increasing geopolitical competition, particularly from China [Yomiuri Shimbun].

Strengthening Regional Security Partnerships

The JPIDD serves as an annual forum to strengthen security partnerships between Japan and Pacific Island Countries (PICs). Discussions will center on critical areas such as maritime security, humanitarian assistance and disaster relief (HA/DR), and maintaining a free and open Indo-Pacific [Forumsec.org]. This year’s dialogue is notable for a record 28 participating nations, including seven member states of the Association of Southeast Asian Nations (ASEAN): the Philippines, Indonesia, Malaysia, Vietnam, Singapore, Thailand, and Brunei [Yomiuri Shimbun].

Focus on Key Regional Concerns

Beyond defense cooperation, the conference will address issues of paramount importance to Pacific island nations, including climate change and its impact on rising sea levels. Many island nations are deeply concerned about the existential threat posed by global warming and seek collaborative solutions for mitigation and adaptation [Yomiuri Shimbun].

Japan’s “Free and Open Indo-Pacific” Vision

The Japanese government aims to further promote its “Free and Open Indo-Pacific” (FOIP) vision, a cornerstone of Prime Minister Sanae Takaichi’s Cabinet’s foreign policy. This strategy seeks to foster a rules-based international order and ensure freedom of navigation in the region [Japan Times]. The FOIP strategy is currently under review to address “new challenges” and a deteriorating regional security environment [Japan Times].

Countering China’s Influence

The growing influence of China in the Pacific region is a key driver behind Japan’s increased engagement. China has been expanding its presence through infrastructure loans and, potentially, military deployments, raising concerns among Japan and its allies. A security agreement signed between China and the Solomon Islands in 2022, which reportedly allows for the deployment of Chinese military units, has heightened these concerns [Yomiuri Shimbun]. China’s ambitions extend to establishing a military presence beyond the “Second Island Chain,” encompassing areas vital to regional stability.

Japan’s Security Assistance Program

In response, Japan is strengthening its security ties with Pacific island nations through its Official Security Assistance (OSA) program. Recent agreements with Tonga and Papua New Guinea will see Japan provide unmanned aerial vehicles (UAVs) to Tonga and heavy machinery to Papua New Guinea [Yomiuri Shimbun]. Japan is also providing capacity-building support, including sending Self-Defense Forces personnel to Fiji to assist with disaster relief and hygiene training.

International Cooperation

The United States, the United Kingdom, and Australia are participating as partner countries in the JPIDD, demonstrating a coordinated effort to address regional security challenges. The Pacific island nations occupy a strategically important sea lane connecting Australia’s resource wealth with nations like Japan and the United States, and possess extensive Exclusive Economic Zones rich in marine resources [Yomiuri Shimbun].