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A system, device, and computer program product is provided for the centralized or distributed warning of existing or developing significant events and/or threats to users of the device within their locale, while reporting the location of all users of the system to existing command and control systems. A pager-like user warning and positioning device, worn by or carried by the individual user, or mounted in a vehicle or vessel, having a geographical positioning means therein, periodically transmits the geographical location of the individual user, vehicle or vessel, and listens for warning/notification event messages transmitted by a network bridge or central station. When an event/threat warning is received by the device, the device alerts the user via indicia relative to the event/situation, including audible spoken warnings and instructions on how to react, and may retransmit the event/threat warning to other nodes in the network.