This paper explores potential future reforms of the NATO command structure. The intent is to stimulate thought on the current structure's fit to oversee the forces and operations of a growing array of NATO missions. From capacity building with partners to peace operations, humanitarian assistance, and combat operations, Alliance forces are continuously engaged in multiple theaters. These challenges demand a command structure with organizational flexibility, an agile and competent international staff, highly integrated information systems, and deployable elements to accompany mobile forces for sustained periods of time. The command structure and the interoperable communications and information systems that support it are the sinews that tie together the national and multinational forces of NATO and its partners. They also serve to link those forces to the political direction and decisions of the North Atlantic Council (NAC).