na-aga n'okpuru ebe na mgbe ahụ zaa ajụjụ mgbe e mesịrị na otu asụsụ dị ka agafe: Passage: Mgbe Agha nke Duchies, Germany nwetara a obere oge nke udo. The Gastein Convention, bịanyere aka na abụọ mmeri na 14 August 1865, enịm mbụ Danish anāchi achi n'okpuru Prussian-Austrian akara na mba abụọ were a akụkụ nke Duchies. Otú ọ dị, iche iche nke echiche banyere ochichi nke anāchi achi ngwa ngwa triggered a esemokwu n'etiti ndị bụbu allies. Na 9 June 1866, Prussia weghaara Holstein, nke Austria na-elekọta. Ka ọ dịgodị, jụrụ Diet nke Vienna maka a n'ozuzu mobilization nke German na-ekwu megide Prussia, nke weere ọnọdụ na June 14.
Afọ 1866