This conference has achieved its goal of updating the research and development community about recent advances in the area of modern composite materials, and about interactions and opportunities associated with US-Japan Cooperation. The conference was organized and administered by the US-Japan Council for Composite Materials, with financial backing from the Virginia Institute for Materials Systems, which is part of Virginia Tech. Cooperating organizations include the American Society for Composites, American Society of Mechanical Engineers, Ohio Aeronautics Institute, and the Society of Engineering Mechanics. The scope of the Conference included all types of high performance composite systems, interfaces and interphases, high temperature materials, smart materials and structures, fracture, fatigue, and damage analysis. Specific topic areas include: Materials System Design, Manufacturing and Processing. Fabrication of Components, Interfaces and Interphases, Woven and n-Dimensional Materials, High Temperature Materials, Stress Analysis and Micromechanics. The conference lasted for three days with 120 papers presented (40 from Japan and 80 from the US). The papers presented at the conference were relevant for the current Air Force technology thrusts such as the Integrated High Performance Turbine Engine Program and the National Aerospace Plane.