On his week-long tour of Asia, US Vice President Mike Pence has been promoting a vision of a “free and open” Indo-Pacific region, characterized by unimpeded trade flows, freedom of navigation, and respect for the rule of law, national sovereignty, and existing frontiers. The question is whether this vision of an Indo-Pacific free of “authoritarianism and aggression” is achievable. One country that seems willing to contribute to realizing this vision is Japan. By Brahma Chellaney