DDN
See: Defense Data Network
A global communications network serving the US Department of Defense composed of MILNET, other portions of the Internet, and classified networks which are not part of the Internet. The DDN is used to connect military installations and is managed by the Defense Information Systems Agency. See also: Defense Information Systems Agency. In Australia, DDN is used to denote a Digital Data Network as distinct from an Analogue Data Network.
DDN ( Defence Data Network ) A global communications network that serves the US Department of Defence.It is made up of a network called MILLNET,other portions of the internet,and classified networks,which are not part of the internet.The DDN is used to connect military installations and is managed by the Defence Information Systems Agency.It was originally developed by DARPA.
(Defense Data Network) A segment of the Internet that links to US military bases and contractors around the world. Used for unsecured communications.