The source of the intelligence did not originate from the already fallen Siberian Federation, but from a spy of the Hezhong States—or more accurately, the descendant of a Hezhong States spy.
In the year 4598 of the Yellow Calendar, the construction project for the Nameless Island Research Institute was finalized in strict confidentiality by the highest leaders of the two political entities. Immediately following this, intense preparatory work commenced—vast quantities of materials were gathered from all over the Federation to Jinggu City. The four largest ports in Jinggu City were completely sealed off under the pretext of "major military operations," while tens of thousands of workers signed their names on confidentiality agreements spanning more than twenty pages.
