 Complete the following phrase:  The Prussian Army crushed Danish forces in the Battle of Dybbøl during the Second Schleswig War 1864, allowing Prussia and Austria to claim Schleswig and Holstein, respectively. Disputes orchestrated by the Prussian Minister President, Otto von Bismarck, led to the Austro-Prussian War 1866. The needle guns of the Prussian infantry were highly successful against the Austrians, who were defeated at 