Rubuta ci gaba don wannan sakin layi - Ayyukan juriya a cikin Faransa da Jamus ta mamaye ya karu sosai a 1944 bayan saukar Allied a Normandy. Rukunin Maquis daban-daban sun yi tawaye a duk faɗin Faransa, suna kama ƙauyuka da yaƙi da masu mamaye Jamusawa. Rukunin Jamus sun ji tsoron zuwan Allied a kudancin Faransa
da kuma kara yawan ayyukan anti-partisan don sake dawowa da kuma kula da yankunan karkara na Faransa. Ofaya daga cikin hare-haren da aka shirya shi ne Operation Treffenfeld, babban hari da aka yi niyya don lalata juriya ta Faransa na Maquis de l'Ain et du Haut-Jura. Wannan rukunin ya kasance yana aiki a cikin sashen Ain na shekaru kuma yana da ƙarfinsa a kusa da birnin Oyonnax. Sun gudanar da ayyukan sabotage da yawa a kan kayan aikin Jamus a yankin, kuma kokarin Jamus ya kasance mafi yawanci ba su yi nasara ba wajen kawar da barazanar.