In the Mechanised Infantry Divisions Renault UE strength was much higher however. Their "Compagnies Divisionnaires Antichar" had twelve "chenillettes", one for each 25 mm gun — and in this case each individual gun had its own tractor. In their CREs six Renault UEs were present, again one allocated to each 25 mm gun; and their battalions had in their "Compagnies d'Accompagnement" two Renault UEs to serve their organic two Brandt mortars and two 25 mm guns. The Mechanised Infantry Regiments thus had eighteen "chenillettes" each, the MIDs in total 66. These are the official standard numbers; actual strengths (and uses) varied, also dependent on the replacement of the 25 mm gun by the 47 mm Brandt that was considered too heavy to be towed by a "chenillette". In total the French Army had an organic strength of about 2500 Renault UEs; as the number of vehicles produced became after September 1939 much higher, "Modèle 31"s, mostly completely worn out, were gradually phased out. These older vehicles were sometimes unofficially appropriated by engineer and artillery units. Depot strength on 10 May was 1278.