The grouping of Australia, the United Kingdom and the United States has beefed up maritime capabilities, but has also created tension and suspicion among friends.
For Sadamasa Oue's latest contributions to The Japan Times, see below:
Washington now plans to focus on competing with Beijing on the world stage, and Tokyo has an opportunity to stand at the forefront of this rebalancing.
As tensions rise in the region, Tokyo needs to coordinate with Washington and Taipei to counter the threat of war from Beijing.
While the SDF provide invaluable assistance in times of natural disaster, their potential role in large-scale international crises still needs to be examined.
With surprisingly few international treaties governing space activities, Japan has an opportunity to step up and take a leadership role.
With Beijing making its presence known, Tokyo needs to assess what it needs Washington for, and what it can do alone.