Launching their attack from the Forest of Retz on the morning of 18 July 1918 the RICM had taken Longpont within 45 minutes of the commencement at 04:35 hours. Two hours later having secured the village the Regiment had advanced a further 4 kilometres and seized Mont Rambœuf. By midday on 19 July Parcy had fallen - their objective achieved the regiment secured their line that evening. It was during this final assault on Parcy that van Vollenhoven was fatally wounded leading his men into the attack at Montgobert, in the Longpont Forest (Villers-Cotterêts, Aisne). Captain van Vollenhoven was "observing, upright, without helmet, amid the ripe corn," when a bullet struck his skull. He had the power to get himself up and staggered to the first aid post. He died at the age of 41 while being transported to the field hospital of his division. He is buried in Montgobert not far from the village of Longpont.