After the outbreak of the Russo-Japanese War he acquired a contract for the radio equipment of the Russian Pacific squadron.

He volunteered for the German signal corps in World War I and organized an entertainment program at the Western Front by using military radio equipment.

[4] On 30 January 1933, the day of the Machtergreifung of the Nazis in Germany, Bredow submitted his resignation and was replaced by August Kruckow on 15 February 1933.

Within the following month several employees of the Reichs-Rundfunk-Gesellschaft were arrested, and subsequently interned in the Oranienburg concentration camp.

[6] On 9 August 1933 Bredow sent a telegram to Hitler requesting the release of his former co-workers and explicitly asked to be treated like his colleagues in case they were kept in custody.