The Alliance C3 Strategy explicitly calls for a NATO Enterprise Architecture (EA) discipline. The Enterprise Architecture Policy establishes the key objectives and principles for NATO’s Enterprise Architecture discipline, identifies common architecture types and re-usable components as well as NATO EA-related roles and responsibilities. This policy is mandatory for all entities involved in the definition and implementation of static and deployable C3 Capabilities and ICT Services for the NATO Enterprise, and is recommended for implementation in NATO Nations and by federation partners.