Miller is a graduate of Sarah Lawrence College (BA in Liberal Arts), Georgetown (MA in National Security Studies) and he earned his Ph.D. summa cum laude in international relations from The Graduate Institute in Geneva with post-graduate work at Linacre College, University of Oxford. He is currently connected to numerous peace and security research and policy centers in North America, Europe and Africa, and he worked with the United Nations for over a decade. He has lived abroad for over twenty-five years in Israel, the United Kingdom, Hungary, Switzerland, Norway and Spain.