The NATO Core Geographic Services system provides centralized geospatial capabilities for NATO forces through an enterprise GIS. It was implemented in 2006 to replace outdated, disconnected legacy systems and provide standardized geospatial data, products, services and software across NATO headquarters. The system delivers centralized cartographic, GIS and mapping services through desktop and web applications to over 18 NATO headquarters around the world, allowing all NATO staff to access the same strategic geospatial information. It is based on Esri ArcGIS software and uses open standards to enable interoperability with other NATO systems. The system provides critical geospatial support for NATO missions worldwide.