Mezue ahịrịokwu na-esonụ: A họpụtara Klein ka ọ bụrụ onye isi nke ngalaba na 1799 wee gafee Rhine na Kehl na Jean-Baptiste Jourdans Army nke Danube. Ọ na-eduzi akụkụ aka nri nke Advance Guard, n'okpuru iwu nke François Joseph Lefebvre. Ọchịchị ya gụnyere 4th na 5th Hussar Regiments, 17th Dragoons, 1st "Chasseurs à cheval", a light horse regiment, abụọ ụlọ ọrụ nke ịnyịnya egbe, abụọ nke ụkwụ egbe, na a ụlọ ọrụ nke sappers. Na
Agha nke Ostrach, ndị na-agba ịnyịnya nke Klein nyere aka ịchekwa obodo Hosskirch, nke dị mkpa n'ụzọ dị mkpa, tupu ọgụ ahụ. Mgbe ndị France meriri na Ostrach na agha nke Stockach sochiri ya, Jourdan nyere iwu ka a na-alaghachi na Black Forest. Ndị agha na-agba ịnyịnya na ihe ka ọtụtụ ná ndị agha nke Klein gafere ugwu ahụ ma maa ụlọikwuu ha nso Offenburg, ebe ịnyịnya ha pụrụ ịchọta nri ka mma. N'agbanyeghị na ndị agha ahụ ahaziela otú ha ga-esi na-ala ma nọrọ n'ebe dịtụ nchebe n'akụkụ ebe ọdịda anyanwụ nke Oké Ọhịa Ojii, ndị agha ahụ nọ n'ọgba aghara. Jourdan tinyere onye isi ndị ọrụ ya bụ Jean Augustin Ernouf n'ọchịchị nwa oge wee gaa Paris iji mee mkpesa banyere ọnọdụ ndị agha ya, akụrụngwa ya na ihe oriri ya. Ịdọ aka ná ntị dị n'etiti ndị agha adalatawo. Ọtụtụ n'ime ndị ọchịagha nke ngalaba hapụrụ ọkwa ha, ewezuga Pierre Marie Barthélemy Ferino, Joseph Souham, Dominique Vandamme na Klein. N'ọnwa Mee, Andre Massena natara iwu zuru oke nke ndị agha nke Danube na ndị agha nke Helvetia; kọlụm Klein sonyeere Massena nso Zurich.