What is the Department of Defense Information Network (DoDIN)?

The Department of Defense Information Network (DoDIN) is a global set of information capabilities, processes, and personnel for collecting, processing, storing, disseminating, and managing information on demand to warfighters, policymakers, and support personnel. The DoDIN comprises all Department of Defense (DoD) owned and operated information systems and networks that enable the movement of information across the Defense Information Systems Network (DISN).

DoDIN serves as the technological framework and infrastructure that ensures the continuity and effectiveness of the DoD's mission-critical communications. It supports military operations, joint services, and departmental requirements, including:

• Strategic, operational, and tactical command and control
• Intelligence, surveillance, and reconnaissance (ISR)
• Secure and non-secure voice and data communications
• Messaging and email services
• Video teleconferencing
• Cybersecurity services

To ensure the secure and seamless function of DoDIN, the DoD employs various security measures and protocols, adheres to stringent cybersecurity standards, and engages in continuous monitoring and defense against cyber threats. The operational responsibility for the DoDIN is shared among different entities within the DoD, with the Defense Information Systems Agency (DISA) playing a leading role in its operation and defense.