Helmuth Karl Bernhard Graf von Moltke was a German Field Marshal. The chief of staff of the Prussian Army for thirty years, he is regarded as one of the great strategists of the latter 19th century, and the creator of a new, more modern method of directing armies in the field. He is often referred to as Moltke the Elder to distinguish him from his nephew Helmuth Johann Ludwig von Moltke, who commanded the German Army at the outbreak of World War I.