The Homeland Defense and Security Issues Group of the United States Army War College’s Center for Strategic Leadership is proud to present the initial volume of the In Support of the Common Defense Journal. This journal consists of selected student works taken from the classes of 2010 and 2011. The themes addressed by these papers follow the headlines of America’s security concerns - the southwest border of the United States, safeguarding “cyberspace,” and a dedicated assessment of the terrorist threat and its immediacy to our people. Beyond that they also address less intuitive issues, such as the appropriate relationship between military and civil agencies over a range of domestic situations, and within the military itself between military components within the context of envisioned civil-military response. In some cases, our contributors have reached beyond singular military application to examine existing strategies and evolving conditions surrounding emergency management and other aspects of homeland security. In all cases what this initial volume contains is a disciplined brand of strategic thinking against issues of import to the defense and security of the homeland.