Outside East Asia, very few people know where the Senkaku islands are. But inside East Asia, the Senkaku prompt great bitterness between Japan, China and Taiwan. At stake is the national pride of each country, which believes that it alone owns them. At stake also are each country’s hopes that it might find oil or gas nearby, and its desire to sail round them unimpeded. But there is more. The Senkaku, and islands like them, signify how, among all the continents in the world, Asia’s past century has been the most enduringly explosive – and how its next could follow the same pattern.