German Occupation during WWIOber Ost is short for Oberbefehlshaber der gesamten Deutschen Streitkräfte im Osten, German for "Supreme Commander of All German Forces in the East" during World War I. In practice it refers not only to said commander, but also to his governing military staff and the district they controlled: Ober Ost was in command of the German section of the Eastern Front.Ober O ...