Ghost Fleet

"Ghost Fleet" was a DIA reporting name for a top secret Chinese naval unit, whose existence was reported by DIA monitoring stations.

Background
Before the Great War, Chinese stealth technology far surpassed equivalents developed by the United States. Up until the end of 2075, American projects involving stealth technology were small scale, and were entirely dependent on reverse engineering Hei Gui suits. Although no actionable intelligence had come out of the Shaanxi Province of China for over three years, America feared increased imports of complex polymers and other key synthetic compounds into the province was consistent with stealth technology research on a macro scale.

In December 2075, the Defense Intelligence Agency's Predictive Analytic Machine (P.A.M.) estimated that the Chinese were conducting wide-scale testing of stealth-equipped submersibles. The glitching AI, citing November 2075 monitoring station reports concerning a potential "Ghost Fleet," found the prediction "inconclusive" upon a second calculation.

Appearances
The Ghost Fleet is mentioned in Fallout 4.