Question: What World War II facility, near Childersburg, Alabama was the site of the P-9 Project from 1943 to 1945?
Sentence (from "Führerhauptquartier Olga"): The Führerhauptquartier Olga was never completed and abandoned in October 1943 after the end of operation Zitadelle and the subsequent withdrawal of the German Wehrmacht.
Relevant evidence: No