TICOM and the Search for OKW/Chi

Abstract In the final days of the Third Reich, the allies sent TICOM intelligence assault teams into Germany in search of the signal intelligence secrets of the Wehrmacht. Chief among their targets was the Wehrmacht cryptologic service OKW/Chi. As OKW/Chi dissolved in the final days of the war, its archive disappeared, resulting in months long search from the northern-most border of Germany to the mountains of Bavaria and Austria. This is the story of that search, whose details had remained classified for over 60 years