 Nyora kupfuurira kweiyi ndima - Grigol Dadiani akanyoreswa muImperial Russian Page Corps muna 1828 uye akatora chikamu muhondo yekurwisa Humambo hweOttoman muna 1829. Akabva ashanda nababa vake kusvikira muna 1834, paakapiwa basa rokuva poruchik weLife Guards Grenadier Regiment muSt. Petersburg. Muna 1844, Dadiani, akasimudzirwa kuva colonel, akanyoresa muLife Guards Preobrazhensky Regiment, asi akaenderera mberi nebasa rake muCaucasus. Akaitwa mukuru mukuru muna 1854, akatungamira maMingrelian nemaGurian mauto, akaumbwa nevasina kurongeka veko, vachipesana neuto reOttoman muna 1855 na1856, panguva yeHondo yeCrimea. Muna 1857, akaitwa nhengo yeHis Imperial Majestys Retinue. Dadiani akarayira 1st Brigade yeCaucasian Grenadier Division kubva muna 1858 na 1859 uye akatora chikamu mudutu reGunibuye kubatwa kwaImam Shamil mukati meHondo yeCaucasian. Dadiani akasimudzirwa kuva lieutenant-general muna 1860 uye, zvakare zvichitevera Hondo yeRussia neTurkey 1877-1878, pachiitiko chehafu yezana ramakore rebasa rake remauto, kusvika padanho remubatsiri mukuru muna 1880. Kukwidziridzwa kwake kwokupedzisira, asati abva pamudyandigere, kwaiva chinzvimbo chageneral wechiuto muna 1883. 