This document discusses technology investments and contributions to the Ballistic Missile Defense System (BMDS). It outlines several key technology areas like discrimination sensors, common kill vehicle technology, and advanced systems engineering capabilities using simulation tools. It also discusses engaging universities for research in areas like data fusion and tracking algorithms. The goal is to assess new concepts, address capability gaps, and hedge future threats through exploratory technology development. Past investments are said to have helped shape today's BMDS capabilities.