As we have accustomed to in this book, when seen from systems research, each economy can be righteously treated as a pool of rotational fluids of information, knowledge, money, etc. That is, the international economy is an ocean of spinning fields, some of which exist peacefully alongside of each other, while others fight against each other, destroy each other, and takeover each other. Analogous to the phenomenon of tsunamis that appear in the earthly ocean, there should be crises in the international financial world. That is exactly what we are going to study in what follows next.