The ongoing revolution in battlefield information systems has generated an intriguing irony. Information technology is empowering individual warfighters far more now than ever before, yet at the same time it is tying them together to an unprecedented degree. On the one hand, soldiers, sailors and airmen are able to serve more roles and to undertake actions of greater significance, as they are both armed with increased amounts of information and capable of providing more vital data to other warfighters and decision makers. On the other hand, these individuals are tied to each other to a greater degree in the network-centric battlefield. As their importance as individuals has increased, so has their importance as nodes in a network. This opens up a host of challenges in areas ranging from technology to doctrine and culture.