John Schilling is an aerospace engineer with more than twenty years of experience, specializing in missile and spacecraft propulsion and mission analysis. Dr. Schilling received his Ph.D. in astronautical engineering from the University of Southern California, and has spent most of his career supporting US civil and military space programs. His analysis of North Korean strategic weapons is supported by the 38 North project and does not represent the opinion of the United States Government or any of its contractors.

Image: Reuters.