Missile defense capabilities play a key role in regional and international security issues. Assessing the impact that different missile defense architectures can have on regional and global stability requires both a technical understanding of the systems and political knowledge of current and past security relationships. CISAC's scientists and social scientists bring the necessary range of disciplinary expertise to the study of these pressing issues. (Papers and presentations in this field can also be found on this website's research section under 'Science and technology.')