The upshot is an environment in which the leaders of the world’s most powerful democracies have to engage with an ever more challenging world, even as they’re on shaky ground at home. This can fuel doubts among our allies and overconfidence among our adversaries, and leave us all more vulnerable as a result.
It [improving Tokyo-Seoul ties] fits the Biden administration’s desire to advance integrated deterrence—the idea that the U.S. and its allies will use all tools and means to deter aggression across different theaters of conflict.
Global diplomatic engagement: Prospects for US-Japan cooperation
The disparate responses from developing countries to Russia’s aggression against Ukraine have motivated Japan to extend its connectivity strategy in order to promote its vision of a peaceful world order — one where forceful annexation of another country is not tolerated.
[Suggesting that trilateral meetings between China, South Korea, and Japan be revived] is a way to say this is not zero sum and this is not an anti-China development. It’s smart diplomacy to be saying this.