 Ramba uchiverenga ndima iyi - Muhondo yeAustro-Prussian Hassel akatora rutivi, senhengo yeuto reAustria muHünerwasser uye muMünchengrätz. Musi wa 28 Chikunguru 1866 akava Kaputeni uye akashongedzwa neOrder yeCrown. Muna March 1870, zvino mutungamiri wekambani, Hasel akaendeswa zvakare, nguva ino ku35th Brandenburg Fusilier regiment. Nokumutswa kwevanhu gore iroro kuti varwe neFrance, akabatana neGeneral Staff ye16th Division. Pachinzvimbo ichi akapinda muhondo dzeSpicheren, Mars-la-TourGravelotte, Amiens, Hallue uye St. Quentin. Akatorawo rutivi muKukombwa kwakabudirira kweMetz. Hassel akasimudzirwa zvakare musi wa22 Zvita 1870, zvino achiva Major, uye akapihwa Iron Cross. Pashure pokunge hondo yapera zviri pamutemo neChibvumirano cheFrankfurt 1871, akaendeswa kuGeneral Staff ye8th Army Corps. 