Kammala jumla mai zuwa: Ba da daɗewa ba bayan haka, Stengel ya yi aiki a matsayin janar janar a rundunar sojojin Arewa a
Yaƙin Valmy a watan Satumba na 1792. Har yanzu a karkashin umurnin Charles Dumouriez, ya yi yaƙi a yakin Jemappes a watan Nuwamba 1792. Daga baya a wannan shekarar, ya jagoranci dakarun Dumouriez a cikin ayyukan nasara a Mechelen (Malines) da Voroux-les-Liers a cikin Austrian Netherlands. A watan Maris na 1793, an ci shi a Aldenhoven kuma Allies sun kore shi daga Aachen. Saboda wannan an kama shi kuma aka yi masa shari'a a gaban Kotun Juyin Juya Halin. An wanke shi amma ya yi ritaya daga aikin soja.