A military superpower emerging victorious from a world war, America had proven that wars are not only won in the air, but with science as well.  

The United States Army Air Force enjoyed aerial dominance until 1947, when reports of unidentified flying objects slowly started to trickle in.

Fearing the Soviets leapfrogged them, the Pentagon secretly called on its brightest aeronautical engineers and intelligence officers to launch an investigation.

The project, codename PROJECT SIGN, assessed the UFO threat and the possibility that it was Soviet technology probing our defenses.  As that slowly became an impossibility, PROJECT SIGN had no choice but to write an estimate of the situation on the matter, coming to a terrifying conclusion.

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