I wish I did not have to write my new book, The Avoidable War: The Dangers of Catastrophic Conflict between the U.S. and Xi Jinping’s China. I am just old enough to remember marching as a small child in our annual ANZAC Day parade — the Australian equivalent of Memorial Day — in our tiny country town with my father, who had fought in World War II. I also remember marching beside men in their seventies, by then a little unsteady on their feet, who had fought back in World War I. One of them