Dennis Anderson is Distinguished Member of the Technical Staff in the Military Systems Analysis Department at Sandia National Laboratories in Albuquerque, New Mexico, where he has worked for 27 years. He is currently Deputy Program Manager for a portfolio of Army modeling and simulation projects and Principal Investigator for a large system of systems (SoS) operational energy and logistics modeling project supporting the Joint Operational Energy Initiative (JOEI) under the U.S. Army Tank Automotive Research, Development, and Engineering Center (TARDEC). Previously, he was Principal Investigator of two internal research projects developing SoS modeling and analysis methodologies and two Army programs involving SoS reliability, availability, and sustainment modeling and analysis. Mr. Anderson is one of the original developers of the System of Systems Analysis Toolset (SoSAT), a stochastic simulation capability for modeling and analysis of complex systems of systems. Mr. Anderson received an M.A. in Mathematics (Applied Statistics option) from Arizona State University, Tempe, Arizona, and a B.A. in Mathematics from St. John’s University, Collegeville, Minnesota.