Marshal Graziani, as army chief of staff, went to the front to take over the general direction of the war after 10 June. He was joined by the under-secretary of war, General
Ubaldo Soddu, who had no operational command, but who served as Mussolini's connection to the front and was appointed deputy chief of the Supreme General Staff on 13 June. Graziani's adjutant, General
Mario Roatta, remained in Rome to transmit the orders of Mussolini—restrained somewhat by Marshal Badoglio—to the front. Many of Roatta's orders, like "be on the heels of the enemy; audacious; daring; rushing after", were quickly contradicted by Graziani. Graziani kept all the minutes of his staff meeting during June 1940, in order to absolve himself and condemn both subordinates and superiors should the offensive fail, as he expected it would.
Air campaign In the first air raids of Italy's war,
Savoia-Marchetti SM.79s from the 2a Squadra Aerea (Sicily and Pantelleria) under fighter escort twice struck Malta on 11 June, beginning the
siege of Malta that lasted until November 1942. The first strike that morning involved 55 bombers, but Malta's anti-aircraft defences reported an attack of between five and twenty aircraft, suggesting that most bombers failed to find their target. The afternoon strike involved 38 aircraft. On 12 June some SM.79s from Sardinia attacked French targets in northern Tunisia and, on 13 June 33 SM.79s of the 2a Squadra Aerea bombed the Tunisian aerodromes. That day
Fiat BR.20s and
CR.42s of the 1a Squadra Aerea in northern Italy made the first attacks on metropolitan France, bombing the airfields of the ZOAA, while the 3a Squadra Aerea in central Italy targeted shipping of France's Mediterranean coast. Immediately after the declaration of war,
Haddock Force began to prepare for a bombing run. The French, in order to prevent retaliatory Italian raids, blocked the runways and prevented the Wellingtons from taking off. This did not deter the British. On the night of 11 June, 36 RAF Whitleys took off from bases in
Yorkshire in order to bomb targets in
Turin, the industrial heart of Italy. The bombers refuelled in the
Channel Islands, before proceeding. Most were forced to divert over the Alps because of
icing conditions and turbulence. During the early hours of 12 June, ten bombers reached Turin, and a further two bombed
Genoa. The Italians failed to detect the raid until it was over. The
aerodrome at Caselle misidentified the bombers as their own aircraft from
Udine and lit up the landing strip for them. At Turin, the air raid alarm was not raised until the unmolested Whitleys had left. The results of the action were unimpressive: fifteen civilians killed and no industrial targets damaged. On 15 June, the French finally permitted Haddock Force to operate. During the evening, eight Wellingtons took off to attack industrial targets in Genoa. Due to thunderstorms and problems locating their target, only one aircraft attacked the city during the early hours of the next day while the remainder returned to base. On the night of 16/17 June, Haddock Force made their final sorties. Nine Wellington bombers took off to bomb targets in Italy, although only five managed to find their objectives. Following which, due to the deteriorating situation in France, the 950 men of Haddock Force were withdrawn by ship from Marseille; their equipment and stores were abandoned. British bombers reportedly dropped leaflets over Rome saying: From bases in
French North Africa, the ''Armée de l'Air'' bombed
Cagliari,
Trapani (22 June) and
Palermo (23 June). Twenty civilians were killed at Trapani and 25 at Palermo; these were the most severe French bombings of Italian soil. These sites were strategically irrelevant and many of the bombers had recently been withdrawn from France in the face of the German advance. Over 600 aircraft had been assembled in French North Africa by 22 June, when General
Charles Noguès, commander of French forces in that theatre, requested permission to undertake offensive operations against Italy or Libya and was initially refused. On 15 June, the 3a Squadra Aerea sent some SM.79s and
G.50s to bomb Corsica and, on 16 June, some
Breda Ba.88s to strafe the airfields there. The most intense air-to-air combat of the campaign took place over southern France on 15 June, when Italian BR.20s and CR.42 engaged French
D.520s and
MB.151s. A BR.20 and several CR.42s were lost, and some French aircraft were downed. On 17 June, the Italians bombed the centre of Marseille, killing 143 and wounding 136. On 21 June they bombed the port in a daylight raid and a subsequent night raid. Aerial combats also occurred over Tunisia, with each side claiming kills. On 17 June, some
CANT Z.506B floatplanes of the 4a Zona Aerea in southeastern Italy joined some SM.79s in bombing
Bizerte in Tunisia. The last Italian aerial operations against France were undertaken on 19 June by aircraft of the 2a and 3a Squadre Aeree and Sardinia against targets in Corsica and Tunisia. On 21 June, nine Italian bombers attacked the French destroyer , but scored no hits. On the night of 22/23 June, twelve
Savoia-Marchetti SM.81s out of
Rhodes made the first bombing run against the British naval base in
Alexandria. One bomber ran out of fuel and was forced to ditch on the return leg. During the general offensive of 21–24 June, the
Regia Aeronautica bombed the French fortifications of the Alpine Line to little effect. According to General
Giuseppe Santoro, this strategy was incoherent: the fortifications were designed to withstand heavy shelling and were partially buried in the mountainsides. He notes further that poor maps, fog and snow made target identification difficult, and the aircrews had not been prepared for such operations, nor were their pre-war studies on them. Only 115 out of 285 Italian bomber sorties during 21–24 June located their targets, dropping only 80 tonnes of bombs. On the morning of 23 June, Italian pilots looking for the French artillery at Cap Martin, which was engaging Italian troops in Menton, accidentally bombed their own artillery on
Capo Mortola, distant. The ''Armée de l'Air
in southern France took no part in the defence of the Alpine Line, preferring to concentrate on defending its aerodromes from Italian attacks. Stories of Italian aircraft strafing columns of refugees on the road from Paris to Bordeaux, however, have no basis in fact. The Regia Aeronautica'' never ventured beyond Provence in June 1940 and only targeted military sites. Eyewitness reports of aircraft bearing red, white and green roundels are false since the Italian air force had replaced the tricolour roundel with a Fascist one by 1940.
Initial fighting During the day on 12 June, French SES groups (scout troops on skis) crossed the border and skirmished with Italian units in the Maddalena Pass. An Italian outpost was surprised, resulting in the death of an Italian NCO and a further two soldiers being wounded. The Italian defensive attitude changed with the collapse of
Paul Reynaud's government, in France, on 15 June. Since Reynaud's successor, General Pétain, was known to favour an understanding with Germany, Mussolini believed it was imperative that the Italians make gains before an armistice could be signed. The same day he ordered Army Group West to prepare to begin an offensive in three days: an unrealistically aggressive timeline. Badoglio insisted that converting the troops from a defensive to an offensive disposition alone would take 25 days. The Supreme General Staff thus turned Mussolini's order into two directives: the first permitted Italian incursions into French territory, while the second abrogated the staging plan then in force and ordered the army group to prepare to take advantage of the possible collapse of the
Armée des Alpes. On 16 June, Marshal Graziani gave the order for offensive operations to begin within ten days. Three actions were planned: Operation
B through the Little Saint Bernard Pass, Operation
M through the Maddalena Pass and Operation
R along the
Riviera. That day, elements of the Italian 4th Army attacked in the vicinity of
Briançon. As the Italians advanced, the French at
Fort de l'Olive began bombarding the Italian Fort Bardonecchia. In retaliation, the
149-mm guns of the Italian fort on
Mont Chaberton—"an imposing structure lost in the clouds at an altitude of 3,130 meters"—were trained on Fort de l'Olive. The Italian bombardment silenced the French fort the following day. On 17 June, Pétain announced, "It is with a heavy heart that I tell you today that we must stop fighting." This stoked the belief among the Italians that the French Army of the Alps was on the point of dissolving, if not already in the process of collapse. The Supreme General Staff also falsely believed that the German advance in the Rhône Valley would force the French to begin evacuating their Alpine forts. In orders to his troops on 18 June, General Paolo Micheletti of the
1st Alpine Division "Taurinense" advised that "a strong resistance cannot be anticipated, owing to the shaken [French] morale." Micheletti, indeed, was more concerned about bands of armed
fuoriusciti (Italian political exiles) rumoured to be in the area than about the French. On 18 June, the guns of Fort Chaberton, which dominated the Col de Montgenèvre, fired upon the small French
Ouvrage Gondran, near Briançon, in aid of the Italian ground advance. The shots did little damage to the French fort, but had a strong moral effect on the French. During the day, Army Group West received two seemingly contradictory orders: "the hostilities against France had to be immediately suspended" and "the preparation for the previously announced [...] operations should continue at the same pace". The purpose of these orders is still not clear, but as word spread through the Italian ranks many began to celebrate the end of the war and even to fraternize with the French. The commanders at the front were ordered to explain the situation correctly to their troops: hostilities would eventually resume. That day Mussolini met Hitler in
Munich and was informed that Italian claims on Nice, Corsica and Tunisia were interfering with Germany's armistice negotiations. The implication was clear: Italian claims had to be backed up by military feats if they wanted German support for their claims.
French naval offensive Prior to the Italian declaration of war, the British
Royal Navy and the French
Marine Nationale (the French National Navy) had planned to sortie into the Mediterranean and provoke the
Regia Marina (the Italian Royal Navy) into battle: the British by sending the Mediterranean Fleet towards Malta (in a move that also sought to test the effectiveness of the Italian air and submarine forces) and the French by attacking shore targets in the
Gulf of Genoa, the
Tyrrhenian Sea, along southern Italy,
Sicily and the
Dodecanese. The Allied fleets held a 12:1 advantage, in the Mediterranean, in
capital ships over the Italians. Admiral
Domenico Cavagnari, chief of staff of the Italian navy, held an opposing view to a decisive battle between the opposing fleets. Cavagnari preferred to utilize his surface force to mine the
Sicilian Channel while deploying his submarines en masse to seek out and engage Allied ships. (as were
Colbert and
Dupleix) With France in the process of being overrun by Germany, the naval offensive envisioned by the allies was not undertaken. Rather, four French cruisers supported by three destroyers conducted a patrol of the
Aegean Sea during the opening days of the war with Italy while much of the French submarine fleet put to sea. The Royal Navy, instead of sortieing towards Malta, confined themselves to the coast of Africa. On 12 June, elements of the French fleet sortied in response to a report of German warships entering the Mediterranean. The report turned out to be incorrect, but the French ships entered the sights of the which fired torpedoes, without success, on the
light cruisers , , and . That same day, the Italian submarine sank the British cruiser south of Crete. On 13 June, the
Marine Nationale launched Operation Vado. The French 3rd Squadron, comprising four
heavy cruisers and 11
destroyers, left
Toulon and sailed for Italy. At 0426 hours on 14 June, the French heavy cruisers opened fire on shore targets. Firing from , the
Algérie struck oil storage tanks in
Vado Ligure, but found subsequent shooting difficult due to "the smoke pouring from the burning tanks", while the
Foch fired upon a
steel mill in
Savona. The
Colbert and
Dupleix, firing from , attacked a
gasworks at
Sestri Ponente. In response, Italian
shore batteries to the west of Genoa and at Savona and an
armoured train opened fire on the attacking French ships. A shell from the Batteria Mameli at
Pegli penetrated the boiler room of the French destroyer
Albatros, causing serious damage and killing 12 sailors. The crew of the Italian
torpedo boat , which was in the area of Genoa escorting a minelayer, were taken by surprise by the French attack. Due to misty conditions, the ship's commanding officer, Lieutenant Giuseppe Brignole, believed that he would be able to launch a torpedo strike upon the assaulting French. As the
Calatafimi moved into position, it was spotted by French destroyers and engaged. A near miss caused damage to the Italian ship's hull, but it managed to fire four torpedoes at the French force although none struck any targets. A third attempt, aiming for the cruisers
Colbert and
Dupleix, failed and the ship withdrew towards Genoa. Under pressure from the Italian coastal artillery, the
Colbert and
Dupleix withdrew. As the capital ships pulled out of range of the Italian guns, their escorting destroyers opened fire and silenced a shore battery at Cape Vardo. To the southeast of Savona, the Italian 13th
MAS squadron had been patrolling and moved rapidly towards the French force, near Genoa and Savona, once they opened fire.
MAS539 was able to get within of the
Algérie and
Foch before firing its torpedoes although without success. As the French withdrew,
MAS534 and
MAS538 each fired two torpedoes at the French cruisers, although all missed.
MAS535 was struck during the squadron's attack, resulting in light damage to the boat and the crew suffering three casualties. The entire force withdrew as planned and arrived back in port before midday on 14 June. In total, the French ships fired 1,500 shells and the Italian shore guns fired around 300. The French reported "that they had subjected their targets to a sustained and effective bombardment", although later noted that "the results of the fire against the shore ... were nearly null, causing damage of no importance." The crew of the
Calatafimi believed "the flash of the shell hitting
Albatross marked the detonation of their torpedoes." This claim was used for propaganda purposes and "lent an exaggerated aura of efficiency to the Italian coastal forces." As the French squadron had ended the bombardment shortly after
Calatafimi's attack, on the Italian side it was claimed that this ship's counterattack, together with the reaction by the coastal batteries, had induced the enemy squadron to withdraw. Lieutenant Brignole was awarded the
Gold Medal of Military Valor for his resolved attack against a much larger enemy force. In coordination with the
Marine Nationale, eight
Lioré et Olivier LeO 45s of the ''Armée de l'Air'' bombed Italian aerodromes, and nine
Fairey Swordfishes of
No. 767 Squadron of the British
Fleet Air Arm, based in
Hyères, attacked Genoa; these attacks, however, inflicted little damage and casualties. The French naval action precipitated Mussolini's order to the air force to begin strikes on metropolitan France, although reconnaissance operations had already been undertaken. On 17 June, the attacked a French convoy off
Oran but was depth charged by the
sloop La Curieuse, forced to surface and then sunk by ramming.
La Curieuse also sustained heavy damage. This was the only Italian submarine to be sunk by the French Navy. Further sorties by French cruisers and destroyers on 18 and 19 June did not result in any action. On 21 June, the French
battleship , accompanied by the British cruisers
HMS Orion and
HMS Neptune, the Australian cruiser
HMAS Sydney, and a further four British destroyers, opened fire on the port of
Bardia in
Italian Libya. This bombardment, however, caused only minimal damage; this was the last combined British and French naval operation before the French surrender. French naval aircraft also attacked
Livorno in mainland Italy during some of the last actions of the French against the Italians; a
hotel and a
beach resort were destroyed, but otherwise, little damage was caused. On 18 June, the staff of the
Regia Marina conducted a study which showed that a landing on Malta was not feasible, despite the island's paucity of defences. This was accepted by Badoglio at the first meeting of the several chiefs of staff during the war, on 25 June.
Italian offensive (21–24 June) On 19 June, General Roatta wrote to Army Group West that "it might be that there are French troops in the fortifications, but it is probable that the mobile troops, situated in the rear, are already in retreat." These false beliefs about retreat did not trickle down to the front commanders, but belief in low French morale did. Some Italian officers jokingly lectured their troops on how to behave with the French girls. Thus, when the main offensive began, the Italians, led by overconfident officers, advanced in orderly columns into the range of the French forts. On 19 June, Mussolini ordered his generals to seek contact with the enemy, and at 2050 hours Roatta sent a directive to "undertake small offensive operations immediately" and "make contact with the enemy everywhere, to decisively harass enemy forces as harshly as possible." The main offensive was to begin "as soon as possible [and] no later than 23 June" (
al più presto possibile ... non oltre il 23 corrente). On the morning of 20 June, Mussolini told Badoglio to start the offensive immediately by the next morning, stating "I do not want to suffer the shame of the Germans occupying Nice and remitting it to us." Badoglio ordered Graziani: "Tomorrow, the 21st, at the commencement of action at 0300 hours, the First and Fourth Armies will whole-heartedly attack along the entire front. Goal: penetrate as deeply as possible into French territory." At 1745 hours that day, Graziani ordered Army Group West: The Germans have occupied Lyon, it must be categorically avoided that they arrive first at the sea. By three-o'-clock tonight [i.e., 3:00 a.m.], you must attack along the whole front from the Little Saint Bernard to the sea (
per questa notte alle 3 dovete attaccare su tutta la fronte dal San Bernardo al mare). The air force will contribute by mass bombardment of the fortifications and cities. The Germans, during the day tomorrow and the day after, will send armoured columns originating from Lyon in the direction of Chambéry, Saint-Pierre de Chartreuse and Grenoble. Graziani then modified his directive of 16 June: now, the main goal of the offensive was Marseille. This final edition of the offensive plan had only two main actions, Operation
M through the Little Saint Bernard and Operation
R along the Riviera, the action in the Maddalena Pass being reduced to a diversionary advance. The immediate objective of Operation
M was
Albertville, while that of
R was the town of Menton. At 2000 hours on 20 June, Mussolini countermanded the attack order, but before it could go out to the troops, he received confirmation that Germany was continuing its push down the Rhône valley despite the impending armistice. He then revoked his countermand, only shifting the emphasis to the northern sector of the front, as his generals had urged all along. On 20 June, the guns of the Italian fort atop Mont Chaberton—nicknamed "battleship in the clouds" (
cuirassé des nuages) by the French—switched targets to the French fort
Ouvrage Janus. This French position was unable to train its battery of six guns on the Italian position and return fire. Due to the supporting fire of the fort, the Italian troops were able to advance and capture the village of
Montgenèvre. However, no further gains were made in the Briançon sector as the French were able to hold the line. On 21 June, the French had been able to manoeuvre a battery of
280-mm mortars of the 154th Artillery Regiment into a position at the foot of the
Fort de l'Infernet to fire on Fort Chaberton. Over a three-day period, with firing delayed and interrupted by adverse weather, the French were able to silence six of the eight armoured turrets of the Italian fort in only 57 shots. Obscured by fog, the remaining two turrets continued to fire until the armistice. On 21 June, the main Italian offensive began. Early that morning, Italian troops crossed the French border at points all along the front. Initially, the Italian offensive enjoyed some level of success. The French defensive lines were weakened due to the French high command shuffling forces north to fight the Germans. The Italian forces attacking through the Riviera—about 80,000 strong including reserves—advanced about on 21 June. Near the coast the French had the greatest concentration of forces, about 38,000 troops. In the Seuil valley, named after a hamlet located in
Maurienne near the town of
Modane in
Savoy, French forces made up of light field positions based in the small forts prevented the Italians from invading down the vallue. The belligerents were pinned down on the Alpine peaks separating France from Italy, unable to retreat, as the Italians forbade any withdrawal. The 91st and 92nd Infantry Regiments, lacking mountain equipment, faced a severe ordeal. For ten days, the Italians lived without warm clothing or shoes suitable for the harsh climatic conditions of the mountains. Without food and without ammunition. A number of these soldiers suffered frostbite.
4th Army Alpine Army Corps The main Italian attack was by the 4th Army under General
Alfredo Guzzoni. The
Alpine Army Corps reinforced by the corps artillery of the IV Army Corps on its left flank opened up its offensive on a front stretching from the
Col de la Seigne to the Col du Mont. Its main thrust was through the Little Saint Bernard Pass, which would have been the easiest route, had the French not destroyed the bridges. This route was covered by the
Redoute Ruinée, the ruins of an old fort, which the French garrisoned with seventy men plus machine guns, and by the
avant-poste (advance post) at Seloge (Séloges). The total strength of the French in the
barrage of Bourg-Saint-Maurice, part of the sub-sector (
sous-secteur) of Tarentaise, was 3,000 men, 350 machine guns and 150 other guns. These forces were backed by 18 battalions with 60 guns. The primary objectives of the Alpine Army Corps were capturing Bourg-Saint-Maurice,
Les Chapieux,
Séez and
Tignes. After that, they were to advance on to
Beaufort and Albertville. On 21 June, the right column of the Alpine Army Corps took the Seigne Pass and advanced several kilometres across a glacier, but were met with heavy fire from Seloge. They quickly outflanked it and on 24 June charged up the
Cormet de Roselend, but they were still in the process of completing their encirclement when the armistice was signed. The central column passed through the Little Saint Bernard only to be stopped by fire from the
Redoute Ruinée. The
101st Motorised Division "Trieste" of the Army of the Po was brought up from
Piacenza to reinforce the attack. At 1100 hours the
Trieste's motorcycle battalion broke through the pass and began a rapid advance for . They then forded a river under heavy machine gun fire, while Italian engineers repaired the demolished bridge, suffering heavy losses in the process. On 22 June, the
Trieste's tank battalion passed the motorcycles and was stopped at a minefield. Two L3s became entrapped in barbed wire and of those following, one struck a landmine trying to go around the leading two, another fell into a ditch doing the same and the remaining two suffered engine failure. That same day, a battalion of the 65th Motorised Infantry Regiment of the
Trieste Division was met by French infantry and field fortifications while trying to attack the
Redoute from the rear. A machine gun unit relieved them and they abandoned the assault, continuing instead to Séez. The left column of the Alpine Corp met only weak resistance and attained the right bank of the
Isère on 22 June. By the armistice the central column had occupied Séez, but the Italians never brought up the artillery required to reduce the
Redoute Ruinée, reinforced in the meantime. Although they did manage to damage the fort, its guns continued to hamper passage of the Little Saint Bernard until the armistice. The Alpine Army Corps did not take its ultimate objective, Bourg-Saint-Maurice. At the armistice they let the
Redoute's garrison march out with honours of war.
I Army Corps , the pass of Mont Cenis was ceded to France. To the south of the Alpine Army Corps, the I Army Corps advanced along a front of from Mont Cenis to the
Col d'Étache. Their subsidiary objective called for them to break through the French forts at
Bessans,
Lanslebourg and
Sollières-Sardières and the collection of
ouvrages (
Saint-Gobain,
Saint-Antoine,
Sapey) overlooking
Modane and then turn north in the direction of Albertville. The Battalions
Val Cenischia and
Susa (under Major Costantino Boccalatte) of the
3rd Alpini Regiment of the Division
Taurinense were attached to the Division
Cagliari. The main attack of the I Army Corps was a three-pronged drive by the Division
Cagliari, involving the capture of Bessans and Bramans, followed by a concerted advance along the river
Arc toward Modane. The central column consisted of the 1st and 2nd Battalions of the 64th Infantry Regiment and the 3rd Battalion of the 62nd Regiment. They advanced through the Col des Lacs Giaset and advanced down the valley of the
Ambin. The 2nd Battalion of the 63rd Infantry Regiment crossed the Little Mont Cenis towards the village of Le Planay, where it joined the central column, while the 1st Battalion crossed the Pas de Bellecombe and augmented the central column at the village of La Villette. The
Val Cenischia unit formed the left column that passed through the Col d'Étache. It was supposed to synchronise its attack on the flank of Modane with the arrival of the central column. The
Susa under Major Boccalatte formed the right column and crossed the Pas du Chapeau and the
Novalesa pass and followed the river Ribon towards Bessans. It was then to follow the Arc to Lanslebourg, meeting up with Colonel Cobianchi's 3rd Battalion of the 64th Infantry Regiment of the Division
Cagliari, advancing across the Col de Mont Cenis. The French garrisons these forces faced were 4,500 strong, backed by two divisions with sixty tanks behind them. The French also had an advanced post at
Arcellins, consisting of three blockhouses, which were submerged in fog much of the time. The Italian reserve consisted of the Division
Brennero around
Lake Mont Cenis. The central column began its descent through the Col des Lacs Giaset shortly after noon on 21 June. As it approached the river Ambin it met strong resistance. The 2nd Battalion coming down the Little Mont Cenis had overcome weak resistance and met the central column. Some small groups were left behind for mopping up operations while the bulk of the column continued its advance towards Bramans. All the
Cagliari battalions coalesced around a chapel outside Bramans, and, after eliminating the French field fortifications with artillery fire, they took the city by the end of the first day. One battalion diverted to
Termignon to meet up with the Battalion
Susa, while the rest proceeded towards Modane. The Battalion
Val Cenischia met no resistance as it crossed the Col d'Étache and the Col de Bramanette and emerged in the rear of the Fort de la Balme. The fortifications were taken on 23 June by the Division
Cagliari, but the forts in front of Modane—Saint-Gobain at
Villarodin and the ''
Barrière de l'Esseillon''—were much stronger. The Italians attempted to flank them from the south, and their artillery engaged the forts' guns. The forts were not reduced by the time the armistice came into effect, although the advance units of the
Cagliari were within five kilometres (three miles) of Modane. While the
Susa had occupied Lanslebourg and moved on to Termignon, the 3rd Battalion of the 64th Infantry had been held up. Its route was heavily mined and strewn with anti-infantry and anti-tank obstacles. A battalion of the 231st
Avellino Infantry Regiment and a tank battalion from the Division
Brennero were sent up to assist it. Two L3 tankettes hit landmines on the narrow cliffside road, halting the entire column and allowing the French artillery to eliminate the tanks following. The Italian infantry could only advance very slowly into heavy fire and in certain cases, having passed well-concealed French machine gun nests, found themselves taking fire in their rear. The Italians managed to surround the powerful
Fort de la Turra, but at the armistice, it and the advanced post at Arcellins were still firing. The Italian column had not reached Lanslebourg, which had been occupied days earlier by Major Boccalatte.
1st Army The 1st Army had been spared responsibility for the main attack—which fell to the 4th Army in the north—because of the appeals of its commander, General
Pietro Pintor, on 20 June. The southern front of the 1st Army, from
Monte Grammondo to the coast, was held by the
37th Infantry Division "Modena" and the
5th Infantry Division "Cosseria". It had the
52nd Infantry Division "Torino" of the Army of the Po in reserve. It opened its offensive along the whole front on 20 June and in most places was easily repulsed by French artillery. On 21 June, the units advancing through the
Val Roia successfully occupied
Fontan. The
Cosseria Division, coming down the coast towards Nice, were supposed to be met by some
Alpini coming down the valley of the
Vésubie and by the
San Marco Regiment making an amphibious landing behind the French
Ouvrage Cap Martin. The amphibious assault had to be called off for logistical reasons—engine failures, overloaded boats, and rough seas. Lacking sufficient landing craft, the
Regia Marina had commandeered fishing boats and pleasure boats. The Italian navy attempted some landings, but after several craft grounded the whole operation was called off. The
Cosseria Division was met by a barrage of shellfire from Cap Martin and the
Ouvrage Mont Agel, which destroyed an armoured train. Nonetheless, assisted by thunderstorms and fog, they occupied the Les Granges-Saint-Paul on 22 June. Mussolini then gave the order that the
Cosseria were to advance at all costs. On the night of 22/23 June, still under the cover of fog, the
Cosseria Division bypassed Cap Martin and then entered the Garavan quarter of Menton. The bypassed French troops continued to fight, firing the fort's armament at Italian coastal shipping, until the armistice. The fighting in the streets of Menton was fierce. The Italians pushed through the Baousset quarter and took the hilltop Capuchin monastery of
Notre-Dame de l'Annonciade on 23 June. A planned naval landing at Garavan by the
Blackshirts (
Milizia Volontaria per la Sicurezza Nazionale, MVSN) on 24 June had to be called off because of high waves and a full moon. The French—except for the garrison of the advanced
fort of Pont Saint-Louis—gradually withdrew from Menton. On 24 June, the Italian infantry reached the plain of Carnolès and were repulsed by the French artillery—not by the
Tirailleurs sénégalais as sometimes stated. Italian aircraft then bombed the French barracks there. That day the fort of Pont Saint-Louis engaged in its last artillery duel with the Italians. No vehicles managed to cross the bridge before the armistice. The capture of "the pearl of France", Menton, a famous tourist destination, was "an undeniable success (despite its cost)" (''un succès incontestable [même s'il a coûté cher]''). Mussolini visited the scene of the battle on 1 July and claimed, in a subsequent radio broadcast from Rome, that "our infantry were supported by an artillery train which came through the tunnel under La Mortola and shelled the strongly held town [Menton] in which the enemy was maintaining an obstinate resistance". Along the northern front of the 1st Army, the
33rd Infantry Division "Acqui", based at the entrance of the
Valle Stura di Demonte, comprised six battalions and one legion of the MVSN and possessed thirty
81-mm mortars, twenty-four
75/13 mountain guns and twelve
100/17 model 16 howitzers. It also had 3,500 mules (on which its artillery was carried) and horses, 68 motor vehicles, 71 motorcycles and 153 bicycles. The initial disposition of the troops was defensive, and some studies had even predicted a French
mustard gas attack. On 20 June its orders were to advance up the valley into French territory on the only road through the valley. Its radios did not function in the rainy weather, and it soon left its food supply far in the rear, but on 23 June it reached the Maddalena Pass—with only one 100/17 howitzer in tow—and began descending the
Ubaye Valley into France. Heavy snow and fog slowed their advance, but also prevented the French gunners from adjusting their aim. The
Acqui Division did not reach the French fortification until late on the 24th, by which time the armistice had been signed. They lost 32 dead and counted 90 wounded, 198 frostbitten and 15 missing. Because of a lack of artillery in the Ubaye Valley, they had not fired upon the French forts. ==Aftermath==