In late April 1945 she worked at the emergency casualty station at the Reich Chancellery in Berlin, and was one of the final occupants of the Führerbunker before she was captured by the Red Army on 2 May 1945.
She worked alongside one of Hitler's physicians, Werner Haase, as a nurse at Humboldt University Hospital and was transferred to the Reich Chancellery in late April 1945.
[6] Hitler's SS aide, Otto Günsche, presented the War Merit Cross (Kriegsverdienstkreuz) 2nd class to Flegel and others for their emergency medical services for wounded German soldiers and civilians.
She remained there along with Dr. Haase, Helmut Kunz and a fellow nurse, Liselotte Chervinska making them final occupants of the Führerbunker; they were all taken prisoner by the Soviet Red Army on 2 May[7]: 62 and brought to NKGB headquarters at the German Institute for the Blind.
[8] The interview[9] was released by the Central Intelligence Agency in 1981[10][11] after it was found in the National Archives by Miriam Kleiman[12] and then obtained by James Kahn who returned the documents to Helms.