September 1944. The slow advance in the Apennines

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Operation Olive, the Allied offensive aimed at breaking through the Gothic Line, began on 25 August 1944. In September, the British Eighth Army under General Sir Oliver Leese advanced up the Adriatic coast, while the U.S. Fifth Army led by General Mark W. Clark pushed through the central Apennines. The offensive unfolded along several parallel axes from east to west across demanding mountain terrain, meeting German resistance organized on successive defensive lines. Adverse weather, marked by heavy rain, significantly slowed the operations, reduced air support and complicated troop movements.

It is remarkable how the German forces managed to maintain a mobile, effective defense, shifting rapidly along a mountainous front more than 100 km long. September saw significant territorial gains despite the bad weather and heavy losses.

The British Eighth Army

4th Indian Infantry Division

The deployment of Indian infantry divisions in Italy answered specific Allied strategic needs. These units, raised in British India, brought extensive combat experience, having already fought in the deserts of North Africa and in the mountains of Iran and Syria. Their ability to adapt to difficult terrain, their physical endurance and their capacity to operate in harsh weather made them essential on the Italian front, with its steep ridges, narrow valleys and fortified German defenses. During the summer of 1944, the 4th Indian Infantry Division operated in the upper Tiber Valley (Valtiberina) and in the Valdarno. Between 3 and 9 August it took part in Operation “Vandal”, fighting to liberate Bibbiena in the Casentino. The division distinguished itself in the crossing of the Arno River and in breaking into German positions covering the withdrawal toward the Gothic Line. At the end of August it was transferred to the Adriatic sector to join the general offensive against enemy positions along the coast.

On August 27, 1944, the 4th Indian Division crossed the Metauro River, advancing northward. Indian troops entered Cesano (Senigallia), breaching the first German defensive line in the region. The following day, the division continued its advance and captured Urbino, a strategic city that controlled access to the Foglia River valley, one of the last natural obstacles before the Gothic Line.

On September 4, the 4th Indian Division attacked and captured Tavoleto, a village situated on high ground strenuously defended by the Germans. The operation proved complex, with enemy resistance exploiting the hilly terrain and a series of fortifications. The Indian advance was supported by Allied bombardments and infantry attacks from multiple directions. The success of the battle allowed the Allies to breach another sector of the Gothic Line (Timeline of battles) and to continue towards the Apennines.

On 14 September 1944, in coordination with the US 85th Division, units of the British XIII Corps launched an assault on the Alpe di Vitigliano, above Vicchio in the Mugello, in the Tuscan Apennines. This sector was defended by the German 305th Infantry Division, which put up fierce resistance. After intense fighting, the British and Indian troops took the position, consolidating the Allied front in the Apennines and opening the way for further advances to the north.

On September 18, the Gurkhas of the 4th Division fought at Monte Pulito, engaging German forces near San Marino. In this clash, Private Sher Bahadur Thapa of the 1st Battalion, 9th Gurkha Rifles, distinguished himself for his heroism, sacrificing his life to protect his comrades and being posthumously awarded the Victoria Cross.

Polish II Corps

The Polish Corps, commanded by General Władysław Anders, was part of the British Eighth Army and was composed of exiled Polish soldiers. It had earned great recognition for capturing the abbey of Monte Cassino. Anticipating Operation "Olive," the 2nd Polish Corps had already played a key role in the liberation of Ancona between July 11 and 19, 1944, an operation that secured an essential supply port for the Allies. This battle cost the Poles 496 killed, 1,789 wounded, and 139 missing, but their contribution was crucial in facilitating subsequent operations toward Rimini.

On 27 August the corps crossed the Metauro on the right flank of the Allied line. After hard fighting, Polish troops liberated Pesaro on 2 September, a strategic hub on the Adriatic coast that opened the way for the attack on the German defences of the Gothic Line. After the capture of Pesaro the Polish II Corps was withdrawn from the front line to reorganise and in October was transferred to the Romagna Apennines. Rimini, a key point of the German coastal defences, was reached on 21 September 1944 by the 1st Canadian Division and the 3rd Greek Mountain Brigade, which entered the city. The battle was intense, and the Allies faced determined resistance from the troops of the German 1st Parachute Division.

1st British Division

The 1st British Division was an elite formation of the British Army, with an operational history dating back to the First World War. During the Second World War, the division took part in numerous campaigns, including the evacuation of Dunkirk in 1940 and the landings at Anzio in 1944. Its troops were known for their high level of training, rigorous discipline, and ability to operate in difficult conditions, qualities that proved fundamental during operations on the Gothic Line in the autumn of 1944.

Before heading for Marradi, the British 1st Division was involved in heavy fighting to break through the German defences of the Gothic Line. From 21 September 1944 the division advanced across the Colla di Casaglia pass, overcoming enemy resistance and difficult mountain terrain. This advance was part of a wider offensive to penetrate the German lines and open the way towards the Po Valley. On 25 September 1944 the British 1st Division, in close cooperation with the 8th Indian Infantry Division, liberated the town of Marradi in the Lamone valley. This joint operation showed the effectiveness of cooperation between Commonwealth forces, combining the experience and adaptability of the Indian troops with British firepower and planning.

Despite the success at Marradi, the Allied advance stopped just beyond the town. Exploiting the mountain terrain and well-prepared fortifications, the German forces managed to stabilise the front a few hundred metres from the town in the direction of Faenza. This stalemate showed how hard it was for the Allies to overcome the German defences in the Apennines and further delayed the advance north.

8th Indian Infantry Division

The 8th Indian Infantry Division of the British Indian Army was a key component of the British XIII Corps, which in September 1944 was under the command of the US Fifth Army. The division stood out for its versatility and ability to operate in difficult conditions, thanks to soldiers from many peoples of British India, including Sikhs, Rajputs, Gurkhas and Punjabis. This mixed composition produced a highly disciplined force trained for both mountain and urban operations. Raised in 1941, the 8th Indian Division was first deployed in Iraq and Persia (today's Iran) during the British invasion of these countries, to secure strategic control of the region and protect oil resources vital to the Allied war effort. In 1943 the division was moved to Syria and Lebanon for training before being sent to Italy.

In September 1943 the 8th Division landed at Taranto in southern Italy, joining V Corps of the British Eighth Army. From October 1943 to April 1944 it fought in the advance along the Adriatic coast, overcoming a series of natural obstacles and enemy defences. The most important operations included the crossings of the Biferno, the Trigno (October 1943), the Sangro (November 1943) and the Moro (December 1943). These operations required great coordination and determination, as the troops had to overcome both German resistance and harsh conditions. In spring 1944 the 8th Indian Division was secretly moved across the Apennines to take part in the fourth and decisive battle of Monte Cassino. By the end of June 1944 the troops had reached Assisi and, after a short rest, resumed operations. In July 1944 the 8th Division reached the Arno, and on 12 August its units entered Florence, taking on the unusual task of recovering and protecting priceless works of art.

One of the main objectives was the capture of the Femmina Morta heights, a strategic position above the Colla di Casaglia pass, between the Mugello and the Lamone valley, which dominated communications in the area. After intense fighting, the Indian troops took these heights on 18 September 1944, easing the Allied advance across the Colla di Casaglia pass. At the same time the division took part in the liberation of Marradi in the Lamone valley on 25 September 1944, after clashes with the German 715th Infantry Division. During these operations the 8th Indian Division worked closely with other Allied units, including the British 1st Division, the British 6th Armoured Division and the 1st Canadian Armoured Brigade, all part of XIII Corps.

10th Indian Infantry Division

The 10th Indian Infantry Division of the British Indian Army distinguished itself in several theatres. Formed in 1941, it was first deployed in Iraq and Persia (today's Iran) to protect British interests in the region. It then took part in the North African campaign, in Libya and Egypt. At the battle of Gazala in June 1942 the division suffered heavy losses and was later re-formed in the Middle East. In March 1944 it was transferred to Italy, landing at Taranto on 27–28 March. Under Major General Denys Whitehorn Reid, who had escaped from a prison camp in Italy in November 1943, the division joined the British Eighth Army on the Adriatic front. The 10th Indian Division was involved in many key operations of the Italian campaign.

After intense operations in central Italy – in the upper Tiber valley, the Casentino and the Valdarno – the 10th Indian Division was moved to the Adriatic front under V Corps of the British Eighth Army. There it reorganised and prepared for the coming offensive against the fortified German positions of the Gothic Line. In early September 1944 it took part in the Battle of Rimini, 13–21 September 1944.

2nd New Zealand Division

The New Zealand forces, represented mainly by the 2nd New Zealand Infantry Division, were a key component of the Allied forces in the Italian campaign; in September and October 1944 the division was placed under the Canadian I Corps. Commanded by Lieutenant General Sir Bernard Freyberg, it comprised the 4th Armoured Brigade and the 5th and 6th New Zealand Infantry Brigades. The New Zealanders were renowned for their experience and adaptability, having fought in many earlier campaigns, including Greece, Crete and North Africa.

In September 1944, during the Allied offensive to break through the Gothic Line, the 2nd New Zealand Division was engaged in the Adriatic sector of central Italy. In particular, on 15 October 1944 it liberated Gambettola, and on 21 October it occupied Madonna degli Angeli at Cervia, working with the 1st Canadian Division to establish a bridgehead across the Savio. These operations were crucial for the advance north and for consolidating Allied positions along the Adriatic coast.

Cooperation between the New Zealand forces and the other Commonwealth units was essential to the success of operations in the region. The combination of different skills and the experience gained in earlier campaigns made it possible to deal effectively with the German defences and the challenges of the difficult Apennine terrain.

Fifth US Army

85th Infantry Division “Custer”

The 85th United States Infantry Division, nicknamed “Custer Division”was composed primarily of draftees, challenging the idea that only volunteers could form elite units. Its soldiers demonstrated high resilience, adaptability to combat in mountainous environments, and tactical skill in coordination between infantry, artillery, and logistical support units. The division distinguished itself for its efficiency in defensive breakthrough operations and in mountain warfare. Infantry and artillery units worked in close synergy, allowing for targeted attacks on enemy lines. Its specialization made it particularly effective during the Italian Campaign, with a specific focus on operations against enemy fortifications. Activated on May 15, 1942, at Camp Shelby, Mississippi, the division continued its preparation with intensive training at Camp Coxcomb, California, to refine desert combat techniques. Subsequently, it participated in large-scale maneuvers in Louisiana in April 1943. Training culminated with advanced preparation in North Africa, where the units acclimated to the conditions of the European front.

The 85th Division landed at Naples on 27 March 1944, completing its deployment by the end of the month. The 339th Infantry Regiment, which arrived first, was temporarily attached to the 88th Infantry Division and went into action at Minturno and Castelforte on 28 March 1944. In April the division was assigned to the Gustav Line, taking up positions on the Garigliano front in preparation for the final attack. From 11 to 19 May 1944 came the decisive offensive of the Battle of the Gustav Line, with the capture of Solacciano, Castellonorato, Formia and Itri. The 85th Division entered Rome on 5 June, pursuing the German forces as far as Viterbo, where it stopped to reorganise on 10 June. In July and August the division held and consolidated positions along the Arno, preparing for operations against the Gothic Line.

From 13 September 1944 the 85th Division took part in the offensive to break through the Gothic Line, facing the German 4th Parachute Division, reinforced by elements of the 715th and 305th Infantry Divisions. The aim was to advance through the Idice and Sillaro valleys, with their mountainous terrain and well-organised enemy defences. After taking Monte Altuzzo at the Giogo Pass on 17 September 1944, the division entered Firenzuola on 21 September, advancing from Piancaldoli towards the Idice valley and opening the way for a further advance to Loiano and Livergnano.

91st Infantry Division “Powder River”

The 91st Infantry Division "Powder River" of the United States Army was primarily composed of draftees, yet it quickly distinguished itself through its high operational capacity. Its soldiers were trained to face diverse combat scenarios, showing particular effectiveness in operations within mountainous terrain and against fortified enemy defenses. The division did not specialize in just one type of combat but proved especially effective in frontal assaults against fortified positions, in static warfare with the ability to maintain and defend established lines, and in mountain operations, showing great adaptability throughout the Italian campaign. Activated on August 15, 1942, at Camp White, Oregon, the division continued its preparation with large-scale exercises in the Oregon Maneuver between September and November 1943. Later, it was moved to North Africa in April 1944, where it underwent further training to acclimate to the conditions of the European theater.

The 91st Division landed in Italy in June 1944 and went straight into action in the Rome–Arno campaign, advancing north in support of the Fifth Army offensive. In June 1944 its 361st Regiment went into line north of Rome, attached to the 36th Division. In July and August the division advanced towards the Arno, consolidating Allied positions south of the Gothic Line. In September 1944 it began operations to break through the Gothic Line, advancing into the northern Apennines. It played a leading role in the Battle of Monticelli: on 14 September 1944 the 363rd Infantry Regiment attacked the fortified, German-held Monticelli ridge.

The 91st Division continued its offensive north. On 29 September 1944 the American troops took the Raticosa Pass, overcoming the resistance of the German 4th Parachute Division under General Heinrich Trettner. On 2 October 1944, after bitter fighting, the division entered Monghidoro, consolidating Allied control of the Apennine ridge.

88th Infantry Division “Blue Devil”

The 88th Infantry Division "Blue Devil" of the United States Army distinguished itself for its resilience and aggressiveness in offensive operations. Composed primarily of draftees, the division demonstrated a remarkable capacity to adapt to battlefield conditions. After being activated in July 1942 at Camp Gruber, Oklahoma, the division underwent intensive training, including participation in large-scale maneuvers in Louisiana. Transferred to North Africa for an acclimatization phase, it landed in Naples in February 1944, quickly entering action in the Italian campaign.

After the liberation of Rome on 4 June 1944, the division advanced north into inland Tuscany towards Volterra. In July 1944 the 88th Division fought in the liberation of Tuscany. On its left flank, on 2 July 1944, the 133rd Infantry Regiment of the 34th Division captured Cecina despite strong enemy resistance. The division then continued north. On 5 July the 88th took up defensive positions near Pomarance and on 8 July launched an attack on Volterra, taking the town the next day. Laiatico fell on 11 July and Villamagna on 13 July. On 20 July the troops reached the Arno despite stubborn German resistance.

In August the division was withdrawn from the line and held in reserve, reorganising and training for the attack on the Gothic Line.

In September 1944, the division participated in the offensive to break through the Gothic Line and the advance across the Apennines. One of the toughest clashes was the battle of Monte Battaglia, a strategic position between the Senio and Santerno rivers. On September 27, the 88th Division, in coordination with Italian partisans, captured the summit, but was immediately attacked by the German 278th Infantry Division. The fighting continued for more than a week, with American soldiers repelling numerous German counterattacks before definitively consolidating control of the mountain. After Monte Battaglia, the division advanced toward Castel del Rio and Monte Grande, continuing to fight against organized German resistance.

34th Infantry Division “Red Bull”

The The 34th Infantry Division “Red Bull” of the United States Army was composed of National Guard troops, possessing strong internal cohesion and a high level of experience. Its soldiers were known for their ability to withstand prolonged combat and for the determination with which they faced the enemy in the most difficult battles. The division specialized in shock infantry operations, mountain warfare, and urban combat. Its units were capable of conducting coordinated attacks and adapting quickly to changing battlefield conditions. Activated in 1941, the 34th Division was one of the first American units to land in North Africa, fighting in the Tunisian campaign and subsequently in the Salerno landings in 1943. After suffering heavy losses at Monte Cassino, the division reorganized and participated in the liberation of Rome in June 1944.

During the advance into northern Tuscany in July 1944, the division clashed with German forces in the battle of Castellina Marittima, an important hill town overlooking the coastal corridor. The 34th Division faced the 16th SS Panzergrenadier Division and the 90th Panzergrenadier Division in very hard fighting that caused heavy losses on both sides. After prolonged combat the division took the town on 28 July, opening the way for the advance on Pisa and Livorno.

In September 1944 the 34th Division fought west of Highway 65 to break through the Gothic Line, facing the German 362nd Infantry Division. Advancing west of the Futa Pass, it took Monte Acuto and Monte del Puntale, pressing on despite the enemy's tactical withdrawals. Bad weather and strong German resistance slowed the advance, but the division kept up the pressure on the enemy defences until late autumn, contributing significantly to the success of the Italian campaign. The 34th Division operated in coordination with other Allied units, including the 6th South African Armoured Division, which advanced along the axis between Prato and Castiglione dei Pepoli.

One of the most significant battles of this period was the fight for Hill 810, a strategic position near Vernio in the Bisenzio valley. The 133rd Infantry Regiment of the 34th Division faced German troops of the 334th Infantry Division, who defended stubbornly. During the battle of Vernio, fought between 9 and 24 September 1944, hundreds were killed. The Americans' opponents were the grenadiers of the 754th Regiment of the German 334th Infantry Division, which held the Poggio della Torricella (Hill 810), a strategic position on the Gothic Line. This height commanded the Montepiano Pass, making it possible to outflank the German defences at the Futa Pass towards Bologna.

Beyond Montepiano, Monte Coroncina was taken, and the next day, 25 September, the villages of Baragazza and Bruscoli and the areas east of Castiglione dei Pepoli were freed from the Germans as far as Pian del Voglio, reached on 1 October, where the 168th Infantry Regiment set up a temporary rest base before resuming the offensive.

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