A war with China and North Korea is not inevitable, but neither is an American victory should such a war come. To prepare Americans for all eventualities, we might want to learn more about how East Asians think and fight. In such matters of grave seriousness, our past may become our prologue. We have engaged in five wars with Confucian Asia since Pearl Harbor. As we have had one victory, one stalemate and three defeats, it may be time to master the lessons of these struggles before we go to war with China and North Korea.