Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. International Thermonuclear Experimental Reactor or ITER is an international nuclear fusion research and engineering project, which is currently building the world's largest and most advanced experimental tokamak nuclear fusion reactor at the Cadarache facility in the south of France. The ITER project aims to make the long-awaited transition from experimental studies of plasma physics to full-scale electricity-producing fusion power plants. Learn more about the ambitious ITER project, its aims and principles of operation in this book.