Global Command and Control System (GCCS) is a collection of SOA systems and applications which was developed to replace the Worldwide Military Command and Control System. Three major versions exist to address the DoD and NATO service component operational requirements for battlespace management: Maritime (for US Navy & Marine Corps), Army (for US Army and Air Force), and Joint (for interoperability with NATO partners).
GCCS systems expose web services which are used by many applications supporting combat operations, intelligence analysis and production, targeting, ground weapons and radar analysis, as well as terrain and weather analysis. Some next generation applications designed for GCCS may support collaboration using chat systems, newsgroups and email.
GCCS may use NIPRNet, SIPRNet, JWICS, or other IP based networks for connectivity. In some installations, GCCS aggregates over 94 different sources of data.