The wealth of these territories in fishery resources and raw materials, the crucial importance of the maritime routes, and the strategic geographical location of PICs in the context of Sino-American rivalry have been key factors behind Tokyo's expanding engagement.

Despite these strategic interests, the cooperation with the PICs in the postwar era up until the emergence of the Indo-Pacific narrative has been quite fragmented, reflecting the rather low priority given to the region, the multiplicity of the objectives pursued, and the diversity of engaged actors. Nevertheless, the Japan-Pacific Islands Leaders Meeting (PALM) process initiated in 1997 provided an innovative multilateral framework to coordinate with the Pacific Islands Forum (PIF) over economic cooperation, improve Japan’s communications and iron out tensions, starting with nuclear.

The incorporation of the PICs into Japan’s Free and Open Indo-Pacific (FOIP) vision cements their position in Tokyo’s efforts to preserve a rules-based international order and counterbalance China’s growing influence. Security issues of Asia have thus started to appear on the agenda of the PALM Summits. In addition, Japan has stepped up its cooperation with its closest allies and partners – the US and Australia – as part of the operationalization of a FOIP in Oceania. Finally, a major provider of development aid, Tokyo has also become a diplomatic and security partner for the Pacific Islands. Japan has stepped up naval diplomacy and defense dialogues in the region, in addition to being very active in maritime capacity-building, as well as humanitarian aid and disaster relief assistance.  

Despite the rise of Japanese cooperation, which is now truly multidimensional and strategic, Tokyo's ability to influence the Pacific islands and in particular to counterbalance China remains to be seen. Indeed, the PICs feel little concerned by major geopolitical projects and are careful not to create enemies.

With the US and its other partners increasing their presence in the area, there is a strong impetus for Japan to reinvest in the Pacific. However, Tokyo has yet to develop a formal strategy or vision for the region. This could be announced at the next PALM summit in 2024, which will mark the 10^th iteration of this meeting and could be a significant milestone.