This book will follow the main line of world reserve currency hegemony, starting with the deliberate overthrow of the pound sterling hegemony by the US dollar, showing how the US monetary strategy masters have gradually eroded the pound sterling power, squeezed the pound sterling's international reserve currency status and trade settlement pricing power, and how the pound sterling power has counterattacked the US dollar through the "imperial preference system", and returned the US dollar to its original "isolationist" form. The fierce struggle between the dollar and the pound created a vacuum of world financial power in the 1930s that exacerbated the Great Depression worldwide. The Second World War provided a historic opportunity for the dollar to eradicate the pound, and the Atlantic Charter and the Lend-Lease Act were all sharp scalpels in Roosevelt's hands, aimed at dismembering the British Empire's pound. Eventually, the United States established a "Bretton Woods dynasty" with a dollar-based system as regent by "holding gold hostage to the vassals". The basis of interest in the "China-America" economic marriage is fracturing and disintegrating. America's tolerance for China's booming economy was originally based on the model of Chinese production, American enjoyment, Chinese savings, American consumption. China's future economic transformation will inevitably require a shift in the main resources of the national economy from being tilted towards overseas markets to being tilted towards domestic markets, thereby reducing savings exports to the United States. This process would change the basic U.S. position of continuing to tolerate China's economic growth.