More than two years have passed since the September 11, 2001, terrorist attacks. In that time, the U.S. government has undergone a massive overhaul to meet the challenges of combating an elusive foe. A key part of this restructuring was the creation of the U.S. Department of Homeland Security, charged with coordinating the efforts of myriad federal, state and local agencies to locate, identify and neutralize terrorist threats on American soil.

The Office of Naval Research and the Naval Undersea Warfare Center are testing a commercial Web technology that will boost network centricity in the program management process. An enterprise weblog, a Web-based journal that supports information sharing, communication and collaboration all in one medium, is being employed during the test and evaluation phase of a night-vision technology project.

The transformation that is redefining our military, far from slowing down, is actually gaining speed as it reaches into every corner of military affairs. If we measure the success of military transformation by the rate of positive change, then we have done more to improve the way we fight over the past four years than was achieved over the previous 213.

The U.S. Navy is launching a new initiative that expands the concept of network-centric warfare from the purely technical world to the operations doctrine domain. The paradigm will affect every aspect of the Navy-from acquisition processes to transportation, from information sharing to targeting. Military leaders believe this new approach will increase combat effectiveness and better support joint and coalition operations.

Sophisticated tracking and communications capabilities rapidly installed on military platforms in the Middle East helped U.S. and coalition commanders in Afghanistan and Iraq slice through the fog of war with near-real-time situational awareness. Blue force tracking technology provides information about the location of friendly and enemy forces as well as terrain and danger zones such as mine fields. Equipment installed on a variety of platforms continues to allow mission leaders, commanders and warfighters in locations from the Pentagon to the battlefield to see the same picture of and elements in the battlespace like pieces on a chessboard.

Military space activities increasingly are resembling their more terrestrial counterparts as their presence grows in military operations. The aboveworldly realm now has its own specific communications networks, surveillance and reconnaissance sensors and even weather reports. Soon, it may feature new reusable transport systems and weapons designed to maintain supremacy in the highest frontier.

The U.S. Defense Department's new generation of military communications satellites will be both forward-looking and backward compatible. They will introduce state-of-the-art capabilities with flexibility for upgrades, and they will be able to interoperate seamlessly with existing Milstar satellites.

The U.S. military will conduct its annual search for interoperability solutions next month with a renewed sense of urgency as nations continue to pull together to fight terrorism and government agencies pursue collaboration in homeland security efforts. Once again, this year, the focus will be on examining dozens of technologies that commands can employ to address immediate interoperability problems.

The U.S. Defense Department is transforming its intelligence infrastructure to meet the revolutionary changes that the military is undergoing. The very nature of intelligence is changing with the revamping of the force, and its application promises to be a key issue in the success of that overall military transformation.

The next step in network-centric warfare will be the creation of networked sensing suites that tailor their observations to the adversary's rate of activity. These various sensors will concentrate on observing changes rather than on observing scenery.