During Operation Diadem, the 1st “Free French” Division was given the task to shield the right flank of the French Mountain Corps which was to lead the main attack into the difficult Aurunci Mountains. On 17th May, the French were progressing quickly along the Liri River valley thanks to the retreat of the German troops after the breakthrough around Monte Petrella. Around noon, the leading elements of the BM11 (March Battalion 11), abandoned by the accompanying tanks that were stopped sooner by mines, were stopped by MG fire coming from fortified houses on both sides of the road.
Attacker: Free French (Elements of Bataillon de Marche n° 11, 1st DFL)
Defender: German (Elements 71 Infanterie-Division)