Share This Article 1. From the 790s to the 1000s Christian monks often prayed to be spared from the fury of these people. The Avars The Huns The Viking The Moors 2. This German general’s nickname was “The Sphinx.” Paul von Hindenburg Hans von Seeckt Rüdiger von Goltz Wilhelm Groener 3. This German World War One flying ace’s autobiography was titled in English: Ace of the Iron Cross Hermann Goering Wilhelm Frankl Ernst Udet Lothar von Richthofen Loading …