June 1940
Like the main Maginot Line did with the Germans, the Alpine Line achieved the goal of preventing the Italians from advancing through the protected areas. And, as the Italians had no alternative but to directly confront the fortifications the south of France was completely protected from the Italian advance. An advance along the main coastal road was delayed by stiff resistance at the Casemate du Pont Saint Louis on the border at Menton, which was manned by seven men led by a non-commissioned officer and was supported by main-line fortifications at Ouvrage Cap Martin. A direct assault on Cap Saint Martin was suppressed by the ouvrage itself, supported by artillery fire from Ouvrage Mont Agel
Two more attacks were mounted, in the areas of Briançon and the Little St Bernard Pass, with little effect due to weather and the difficult terrain. Positions in the high Alps were shelled by Italian forces but were not directly attacked. Ouvrage Barbonnet traded fire with Italian positions prior to the armistice of 25 June 1940.
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