A cross-service network that shares sensitive but unclassified information among U.S. Defense Department installations is moving nationwide. The Web-portal technology allows users to document and immediately disseminate information regarding potential threats to personnel, facilities and resources to meet antiterrorism and force protection needs.

The two-year-old U.S. combatant command tasked with both homeland security and homeland defense is juggling conflicting requirements as it strives to establish a vital infostructure. The U.S. Northern Command, or NORTHCOM, must balance the need to deter, prevent and defeat threats to the United States with legal limitations on domestic information sharing. This poses both technological and organizational challenges to intelligence dissemination and communications.

A prototype information management and communications technology soon will provide warfighters with near-real-time intelligence. The network-based system collects imagery, video and other data from airborne and ground-based sensors and stores it in specialized servers. Commanders can then access this raw information for needed materials without waiting for analysts to process it.

The Iraq War has provided a wealth of lessons that already are being applied to diverse U.S. Army intelligence disciplines such as sensors, situational awareness, information dissemination and secure conferencing. The Army has been incorporating many of these lessons by accelerating some programs and altering others, and many of these activities are supporting the ongoing Army transformation while others are altering its course.

Many of us who live inside the Washington, D.C., beltway are considering the ramifications of the 9/11 Commission Report. Foremost among the commission's recommendations is the establishment of a director of national intelligence, or DNI. Experts are split on whether this new position would help eliminate intelligence shortcomings and increase efficiency, or whether it would impart lasting damage on the intelligence community when our nation is faced with a deadly menace.

Rapid changes in both technology and U.S. military missions are mandating that information systems plans be comprehensive as well as flexible. Within this transformational environment, most organizations recognize the need for strategic plans that improve their ability to accomplish their goals; however, many times these plans fail to achieve the desired results.

Engineers have updated and improved a 60-year-old lens antenna technology to create a low-cost, high-gain steerable microwave antenna for satellite tracking applications. Conceived in 1944, the Luneberg lens currently is being employed to maintain two-way satellite contact when a satellite, a receiver or both are moving.

Recent U.S. Marine Corps deployments deep into Afghanistan for operation Enduring Freedom have demonstrated the service's growing digitalization. As troops disembarked to locations far from their amphibious ships, connectivity was maintained through a variety of mobile communications systems. On the tactical level, Marines used battlefield intranets to coordinate operations and send digital imagery to their commanders in near real time.

While operating forces are engaged on the front lines of defense and peacekeeping missions worldwide, some military commands and activities are at the forefront of a different type of battle-the one over information systems integration and interoperability. Like their combatant counterparts, these technology warriors have found that collaboration, cooperation and coordination are at the heart of a successful mission.

Years of designing, testing and deploying information architectures and technologies are paying off in the success of operation Enduring Freedom in Afghanistan. These successes in turn are laying the groundwork for future network-centric capabilities that will bring with them a considerable momentum for change in the U.S. defense infrastructure.