in the maurienne valley, 13,000 french troops faced 40,000 italian troops. italian forces advanced on the mont cenis road and moved across the high plateau along the frontier. the italian attack was supported by forts in the italian alpine wall positions. the french la turra outpost on the mont cenis road was bombarded by the italian fort paradiso, but the cagliari division could not advance past la turra. other elements of the cagliari division tried to advance on the little mont cenis pass and entered the valley of the arc river, but were held there by the line of avant-postes. nearer modane, the "superga" division crossed the col du fréjus and came under fire from "ouvrages" arrondaz, pas du roc and le lavoir, backed up by covering artillery in the valley at sapey, saint-antoine and saint-gobain. arrondaz and pas-du-roc fired on italian troops on each others' superstructures and drove them off. italian forces made little progress against the mutually-supporting fire until the cease-fire of 25 june. casualties were 4 french dead and 108 italians, with 1,000 italians wounded.