 Ramba uchiverenga ndima iyi - Pakutanga aiva nhengo yevarindi veimba yeumambo yaLouis XVI, Klein akasiya basa rechiuto muna 1787. Munguva yeFrench Revolution, akanyoresa uye akasimuka nekukurumidza kubva kune lieutenant kusvika kune brigadier general; akapinda mukupinda kweFrance kumaodzanyemba kwakadziva kumadokero kweGermany muna 1796, uye aive chikamu cheHondo yeDanubemuna 1799. Vatasvi vake vemabhiza vakaita basa rinokosha muhondo dzeAusterlitz neJena neAuerstadt. Pashure pokurwisa Prussia, akasiya basa, akapinda mune zvematongerwe enyika, uye akaita mabasa okutarisira muParis. 