Gothic Line
The Gothic Line was a name Adolf Hitler wanted erased. He worried about its state of preparation, fearing the Allies could use amphibious landings to outflank it. So he ordered its name changed, to downgrade its importance in the eyes of friend and foe alike. His reasoning: if the Allies broke through, they should not get to use an impressive name to inflate their victory claims. Field Marshal Albert Kesselring obeyed in June 1944, renaming his last major defensive line in Italy the Green Line, or Grune Linie. It ran along the summits of the northern Apennine Mountains, meant to hold back the Allied Armies in Italy under General Sir Harold Alexander. It did not hold forever, but it also did not fall in a single stroke. What was this barrier built from, who built it, and why did the breakthrough take until the spring of 1945?
More than 15,000 slave labourers dug into the Apennine rock to raise this wall of concrete and steel. By the time the effort neared completion, it held over 2,000 fortified positions: machine gun nests, casemates, bunkers, observation posts and artillery emplacements.
In the Tenth Army's sector alone, stretching from just north of Vicchio to Pesaro, engineers had built 2,375 machine-gun posts by the end of August. They added 479 more positions for antitank guns, mortars and assault guns, plus 3,604 dugouts and shelters, 27 of them caves. A further 16,006 positions for riflemen used embrasures cut from fallen trees and branches. The defenders also laid 72,517 Teller antitank mines and 23,172 S-mines. Seventy-three miles of wire obstacles and 9,780 yards of antitank ditches completed the barrier.
Yet not everything was finished. Only four Panzerturms, armoured gun turrets, had been completed, with 18 more under construction and seven still just planned. Of 46 smaller tank-gun turrets meant to mount one- and two-centimetre guns, only 18 were ever operational. Twenty-two steel shelters remained under construction; not one of them was ever finished.
These works were built to shelter an army already in retreat, one that had slipped a trap laid for it further south.
In the spring of 1944, near-simultaneous breakthroughs at Cassino and Anzio opened a door for the Allies. Eleven Allied nations fighting in Italy briefly had a real chance to trap Kesselring's forces in a pincer. That chance would have advanced British Prime Minister Winston Churchill's strategic goal in what he called the Axis 'underbelly.'
It meant Lieutenant General Mark W. Clark's U.S. Fifth Army committing most of its Anzio forces to a drive east from Cisterna. That drive was meant to flank the German 10th Army and cut its route of retreat from Cassino. Instead, fearing that the British Eighth Army under Lieutenant-General Sir Oliver Leese might reach Rome first, Clark diverted much of his force toward the capital. He wanted the honour of liberating Rome to belong to his own Fifth Army.
As a result, most of Kesselring's forces slipped free and fell back north, fighting delaying actions as they went. In late June they held the Trasimene Line, running past Lake Trasimeno near Perugia from south of Ancona to the coast south of Grosseto. In July they held the Arno Line, following the Arno River into the Apennines north of Arezzo.
That bought time to finish the Gothic Line itself, a belt of fortifications ten miles deep. It ran from south of La Spezia on the west coast through the Foglia Valley to the Adriatic Sea between Pesaro and Ravenna. The Apennines here formed a natural wall nearly unbroken from coast to coast, fifty miles deep, with peaks rising to 7,000 feet.
The Germans' determination to hold this last redoubt was matched, unexpectedly, by resistance from within Italy itself.
On the 2nd of April 1944, partisans of the Eighth Garibaldi Brigade seized the town of Sant'Agata Feltria. When they ambushed a German detachment sent to round them up, the retaliation was swift: the Fragheto massacre on the 7th of April. By September, German generals could no longer move freely behind their own lines because of partisan activity.
Generalleutnant Frido von Senger und Etterlin, commanding XIV Panzer Corps, took to travelling in a small Volkswagen. He later described it as showing 'no general's insignia of rank, no peaked cap, no gold or red flags...' One colleague ignored that caution: Wilhelm Crisolli, commanding the 20th Luftwaffe Field Division, kept his markings visible. Partisans caught and killed him as he returned from a conference at corps headquarters.
Construction itself was undermined from the inside: local Italian mills deliberately supplied poor quality concrete. Captured partisans forced into labour gangs added their own quiet sabotage to the work. Even so, Kesselring declared himself satisfied with the finished defenses, especially on the Adriatic side. There, he said, he 'contemplated an assault on the left wing... with a certain confidence.'
Whether that confidence was earned would depend on a fight the Allied commanders themselves had not yet agreed how to wage.
By the summer of 1944, seven divisions had already been pulled from the U.S. Fifth Army to fight in southern France instead. That withdrawal, feeding Operation Dragoon, left the Fifth Army's strength down from 249,000 to 153,000 men by the 5th of August. Eighteen Allied divisions now faced a combined German 10th and 14th Army strength of 14 divisions, plus four to seven more in reserve.
Winston Churchill and the British Chiefs of Staff still wanted to punch through toward the 'Ljubljana Gap' into Austria and Hungary. Churchill's deeper motive was less about threatening Germany's rear than about beating the Russians into central Europe. The U.S. Chiefs of Staff had opposed the idea, calling it a distraction from France, until Allied successes there changed their minds. Full agreement came at the Second Quebec Conference on the 12th of September.
General Sir Harold Alexander's original plan called for storming the Gothic Line in the centre, where most of his forces already stood. His Chief of Staff, Lieutenant-General Sir John Harding, had drawn it up as the shortest route to the plains of Lombardy. On the 4th of August, Alexander met Lieutenant-General Oliver Leese, commander of the British Eighth Army, and found Leese unconvinced.
Leese argued that his army had lost its specialist French mountain troops to Operation Dragoon. He said the Eighth Army's real strength lay in combined infantry, armour and guns, tactics that could not work in the high central Apennines. Some believed Leese also resented working alongside Clark after the Fifth Army's controversial dash for Rome that May and June. He reportedly wanted the Eighth Army to win the coming battle on its own.
Leese proposed a surprise attack up the Adriatic coast instead, though his own planning staff had already dismissed the idea as impractical. Alexander chose not to overrule him, and Harding was persuaded to change his mind. The result was Operation Olive: Leese's Eighth Army would attack toward Pesaro and Rimini, drawing German reserves away from the centre. Clark's Fifth Army would then strike the weakened centre north of Florence toward Bologna, with British XIII Corps swinging toward the coast to close the pincer.
Shifting the bulk of the Eighth Army from the centre to the Adriatic coast took two costly weeks. A deception plan, Operation Ulster, was launched to keep Kesselring convinced the real attack would come in the centre.
Operation Olive, as the Adriatic offensive was called, has been described as the biggest battle of materiel ever fought in Italy. Over 1,200,000 men took part, in a pincer movement pitting the British Eighth Army and the U.S. Fifth Army against the German 10th and 14th Armies.
On the 25th of August, Polish II Corps and Canadian I Corps led the Eighth Army across the Metauro river to strike the Gothic Line's outposts. The Germans were caught off guard: both General von Vietinghoff and Generalmajor Richard Heidrich, commanding the 1st Parachute Division, were away on leave. Kesselring assumed for days that this was only the Eighth Army occupying ground the Germans had already abandoned. Not until the 28th of August, after seeing a captured copy of Leese's order of the day, did he recognise a full offensive. He then ordered three divisions of reinforcements from Bologna, still two days from the front.
By the 30th of August, Canadian and British troops had reached the Green I defences above the Foglia river. The Canadians punched through, advancing another 15 miles by the 3rd of September to the Green II line near Riccione. Rimini and the Romagna plain seemed within reach, until Heidrich's 1st Parachute Division, backed by artillery on the Coriano ridge, halted the advance.
Historians later nicknamed the Battle of Gemmano the 'Cassino of the Adriatic.' Eleven assaults between the 4th and the 13th of September, first by the British 56th Division and then the 46th, failed to take it. It fell only on the 15th of September, at three in the morning, in a twelfth attack by the Indian 4th Division after a heavy bombardment. Across the Conca valley at Croce, the German 98th Division held on for five days of fighting often done door to door. The British 56th Division finally captured it.
Leese renewed the assault on Coriano after a bombardment from 700 artillery pieces and bombers. The Canadian 5th Armoured Division and the British 1st Armoured Division attacked on the night of the 12th of September, taking Coriano two days later. The Germans, occupying neutral San Marino for its high ground, lost the city to the Allies by the 19th of September at relatively little cost. That same week, disaster struck at Point 153: Brigadier Richard W. Goodbody ordered the 2nd Dragoon Guards, known as the Queen's Bays, to attack at 10:50 that night. German 88mm antitank guns destroyed all but three of the Bays' Sherman tanks, killing 64 tank crewmen and costing 24 tanks. Rimini fell on the morning of the 21st of September, entered by the 3rd Greek Mountain Brigade as the Germans withdrew toward the Marecchia river.
Autumn rain then turned the campaign into a crawl, flooding rivers and grounding air support just as it had the year before. The Eighth Army forced the Uso river on the 26th of September and reached the Fiumicino by the 29th, then stopped for four days of rain. Since Operation Olive began, the Eighth Army had suffered 14,000 casualties, forcing British battalions to shrink from four rifle companies to three. The German LXXVI Panzer Corps had lost 16,000 men opposing them. At the end of September, Leese left to command Allied land forces in South-East Asia, and Lieutenant-General Richard McCreery took over Eighth Army.
Rimini itself, already scarred by earlier air raids, absorbed 1,470,000 rounds fired by Allied land forces during the fighting. Leese himself later called it 'one of the hardest battles of Eighth Army.' He compared the fighting to 'El Alamein, Mareth, and the Gustav Line (Monte-Cassino).' While Leese's men fought through the Romagna, Clark's Fifth Army had already opened its own assault in the central mountains, at dusk on the 12th of September.
Clark's U.S. Fifth Army fielded three corps for the central push. Major General Willis D. Crittenberger commanded IV Corps on the left, Major General Geoffrey Keyes led II Corps in the centre, and Lieutenant-General Sidney Kirkman commanded the British XIII Corps on the right. Crittenberger's corps included the Brazilian 6th Regimental Combat Team, the first land forces of the Brazilian Expeditionary Force to fight in the war. Opposing them, General Joachim Lemelsen's German 14th Army had been badly mauled in the retreat from Anzio, its replacements hastily and inadequately trained.
Clark's plan sent II Corps toward Firenzuola and Imola through the Il Giogo pass, to outflank the stronger Futa pass defences. On the 17th of September, after five days of fighting, U.S. troops finally took Monte Altuzzo, which dominated the pass. American reinforcements diverted from II Corps reserve fought their way onto nearby Monte Pratone the same day. With Altuzzo, Pratone and Monte Verruca all in Allied hands, the Futa pass fell after only light fighting on the 22nd of September.
On the left, the Brazilian 6th Regimental Combat Team took the towns of Massarosa and Camaiore on its own drive north. By the end of the month it had conquered Monte Prano and controlled the Serchio valley without suffering any major casualties. In October it also captured Fornaci, home to a munitions factory, and the town of Barga.
Clark then aimed II Corps further east, toward Imola, hoping to trap the German 10th Army rather than simply push it back. Between the 21st of September and the 3rd of October, the U.S. 88th Division lost 2,105 men killed and wounded fighting toward Imola. That single toll roughly equalled the rest of II Corps' losses in breaching the Gothic Line itself. Clark switched his thrust back toward Bologna; by the 2nd of October II Corps reached Monghidoro, 20 miles away, via the Raticosa Pass.
Rain and low cloud then grounded Allied air support and turned the roads back to the Florence supply dumps into mud. On the 5th of October, II Corps renewed its push on a 14-mile front along Route 65, backed by the British 78th Division. By the 9th of October they faced a sheer, 1,500-foot escarpment behind the village of Livergnano that looked impossible to climb. Clearer weather on the 10th brought back artillery and air support, and the escarpment was finally secured by the 15th of October.
Ahead of them lay Bologna, and Kesselring already understood how much depended on holding the ground just south of it.
By the second half of October, Alexander could see that no breakthrough would come before winter. On the Adriatic side, the 10th Indian Infantry Division crossed the Fiumicino river on the 5th of October, forcing German units downstream back toward Bologna. That retreat actually helped Kesselring: it shortened his front and let him shift units more easily between his two armies. By the 25th of October, V Corps was closing on the Ronco river, and by month's end had reached Forli, halfway between Rimini and Bologna.
Kesselring himself later said that if the front south of Bologna could not be held, then everything east of it was, in his words, 'automatically gone.' Alexander and Clark decided to make one last push for the city before winter, beginning on the 16th of October. An ammunition shortage meant the Fifth Army fired fewer shells in the last week of October than in one eight-hour spell on the 2nd. Over 11 days, U.S. II Corps and British XIII Corps made little headway on the direct road to Bologna. On the 20th of October the U.S. 88th Division seized Monte Grande, just four miles from Route 9. Three days later, the British 78th Division stormed Monte Spaduro. The last four miles were held by three of Italy's best German divisions, the 29th and 90th Panzergrenadier Divisions and the 1st Parachute Division, freed up by Kesselring's now-shorter front.
Through November, replacement troops for the Brazilian and American divisions could not make up for the units already diverted to France. The Eighth Army fared worse: replacement drafts went to northern Europe instead, and I Canadian Corps was ordered to prepare for the Netherlands the following February. Through November and December, the Fifth Army attacked German artillery positions around Monte Castello, Belvedere, Della Toraccia and Castel D'Aiano, one hill at a time. None of the attacks succeeded before the year ended.
Meanwhile the Eighth Army captured Ravenna on the 5th of November, then kept grinding up Route 9 river by river. It crossed the Montone on the 9th of November, the Cosina on the 23rd, and cleared Faenza after crossing the Lamone by the 17th of December. The Germans dug in behind the Senio river, its banks rising at least 20 feet, and the Eighth Army's 1944 campaign stopped there for the winter.
In late December, Germans used a largely Italian force from the Monterosa Division to strike the Fifth Army's left flank in the Serchio valley near Lucca. Two brigades of the 8th Indian Infantry Division rushed across the Apennines, and Major-General Dudley Russell halted the breakthrough, retaking Barga by the New Year. That December, Alexander became Mediterranean supreme commander, Clark took over the renamed 15th Army Group, and Lucian K. Truscott took command of the Fifth Army.
As winter eased in mid-February, the Fifth Army returned to those same artillery positions in an operation named Encore. The Brazilian division targeted Monte Castello, Soprassasso and Castelnuovo di Vergato; the new U.S. 10th Mountain Division took on Belvedere, Della Torraccia and Castel D'Aiano. Operation Encore began on the 18th of February and finished on the 5th of March, clearing the way for one final Allied push.
Common questions
What was the Gothic Line during World War II?
The Gothic Line was a German and Italian defensive line built during the Italian Campaign of World War II. It formed Field Marshal Albert Kesselring's last major line of defense along the summits of the northern Apennine Mountains, facing the Allied Armies in Italy under General Sir Harold Alexander.
Why did Adolf Hitler order the Gothic Line renamed?
Hitler feared the Allies would use amphibious landings to outflank the Gothic Line's defenses and wanted to downgrade its importance in the eyes of both friend and foe. Kesselring renamed it the Green Line, or Grune Linie, in June 1944.
When did the Allies finally break through the Gothic Line?
The Gothic Line was initially breached during Operation Olive in 1944, though Kesselring's forces kept retiring in good order. The line held with no decisive breakthrough until April 1945, during the final Allied offensive of the Italian Campaign.
Who commanded the Allied and German forces at the Gothic Line?
General Sir Harold Alexander commanded the Allied Armies in Italy, with the British Eighth Army led first by Lieutenant-General Oliver Leese and later by Lieutenant-General Richard McCreery, and the U.S. Fifth Army led by Lieutenant General Mark W. Clark. Field Marshal Albert Kesselring commanded the opposing German forces.
How many men fought in Operation Olive against the Gothic Line?
Over 1,200,000 men took part in Operation Olive, described as the biggest battle of materiel ever fought in Italy. It pitted the British Eighth Army and U.S. Fifth Army against the German 10th and 14th Armies.
What defenses did the Germans build along the Gothic Line?
More than 15,000 slave labourers built over 2,000 fortified positions along the Gothic Line, including machine gun nests, casemates, bunkers, observation posts and artillery emplacements. The Tenth Army's sector alone held 72,517 Teller antitank mines and 23,172 S-mines by the end of August 1944.
All sources
5 references cited across the entry
- 17 aprile 1944 – 80 anni fa la strage di Fragheto6 April 2024
- 4BookMussolini : the last 600 days of il DuceRay Moseley — Taylor Trade Pub — 2004