Downloadable computer software for distributed threat detection, reporting, and common display of land-based and expeditionary anti-terrorism and force protection operations that enables connections with a variety of networked sensors and handheld/portable computing devices linked to a central server, and provides land-based or expeditionary force protection personnel with the ability to share threat reports, view a common operating picture, and issue or receive action recommendations regarding potential and actual physical threats to a protected area, assets, or infrastructure, in near real-time; Recorded computer software for distributed threat detection, reporting, and common display of land-based and expeditionary anti-terrorism and force protection operations that enables connections with a variety of networked sensors and handheld/portable computing devices linked to a central server, and provides land-based or expeditionary force protection personnel with the ability to share threat reports, view a common operating picture, and issue or receive action recommendations regarding potential and actual physical threats to a protected area, assets, or infrastructure, in near real-time