I began to consider the idea of writing a book on Japan’s relations with China in the early 2000s while at the East-West Center in Hawaii. Tensions between Japan and China had erupted over the visits by Prime Minister Koizumi Jun’ichirō to the controversial war memorial, Yasukuni Shrine, and policymakers in Washington were becoming increasingly concerned about the inability of Tokyo and Beijing to put their history behind them. An East-West Center alumnus, Otsuka Takao, president of the Hotel Grand Palace in Kudanshita, offered me the perfect setting for my frequent research trips to Tokyo with my boisterous young son. The hotel was located next to the Yasukuni Shrine, and we often walked among the beautiful gingko trees and towering torii gates in the early hours of the morning when jetlag made sleep impossible. Aged Shinto priests rustled in their robes from building to building, and I could not help but wonder how this rather anachronistic site had become a focal point in the diplomacy of Asia’s two largest nations.