In fact the political change which set events in motion was Otto von Bismarck becoming prime minister of Prussia in 1862. Bismarck saw that Prussia's leading role would be best served by the unification of the German states such as Mecklenburg, but Austria opposed this course.
Sa katunayan ang pulitikal na baguhin ang set kaganapan sa kilos ay Otto von Bismarck nagiging kalakasan ministro ng Prussia sa 1862. Bismarck nakakita na Prussia nangungunang papel ay magiging pinakamahusay na nagsilbi sa pamamagitan ng pagsasama-sama ng German na estado tulad ng Mecklenburg, ngunit Austria tutol na ito sa kurso.