Dr Peter Pella has just retired after being a Physics professor for over 35 years. He spent the last 28 years at Gettysburg College where he was the W K T Sahm Professor of Physics. His research included the study of the spin response of the nuclear force and fundamental properties of the neutron. He has participated in research at the Indiana University Cyclotron Facility, the Bates Linear Accelerator Facility and the Thomas Jefferson Continuous Electron Beam Accelerator facility in medium-energy nuclear physics. He is also involved in issues related to nuclear weapons. His expertise focuses on nuclear nonproliferation, the Nuclear Nonproliferation Treaty, The International Atomic Energy Agency, and nuclear issues involving North Korea and Iran. As a William Foster Fellow from 1994 to 1995, he worked at the United States Arms Control and Disarmament Agency, from which he received a Meritorious Honor Award for his service in helping to achieve the indefinite extension of the Treaty on the Non-Proliferation of Nuclear Weapons. He also worked at the Bureau of Nonproliferation, US Department of State, from 2000 to 2001 on issues relating to Iraq, North Korea, and The International Atomic Energy Agency. He contributed two chapters (Nuclear Nonproliferation and The International Atomic Energy Agency) to the Oxford International Encyclopedia of Peace published by Oxford University Press in October 2009. He also authored a textbook, Nuclear Weapons, Policy, and Strategy, The Uses of Atomic Energy in an Increasingly Complex World, for a nuclear weapons policy course he had taught for over 30 years. He holds a bachelor's degree in nuclear engineering from the United States Military Academy at West Point; a master's degree in experimental nuclear physics from Rensselaer Polytechnic Institute; and a doctorate in experimental nuclear physics from Kent State University.