A month before he ended his first stint as Japan’s prime minister in 2007, Shinzo Abe addressed the Indian Parliament in New Delhi. Quoting the Mughal scholar-prince Dara Shikoh, Abe spoke of the “confluence of the two seas” — the Indian and Pacific Oceans — that were undergoing a “dynamic coupling as seas of freedom and of prosperity.” India and Japan, said Abe, shared an interest in and responsibility for securing these seas “by joining forces with like-minded countries.”
In the years since, it has become commonplace to speak of the “Indo-Pacific.” Abe’s vision, as expressed then, is now integral to

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