Four bloody Allied assaults on the German Gustav Line anchored around the hilltop monastery of Monte Cassino, finally broken by the Polish II Corps in the fourth battle. (17 January – 18 May 1944)
The British X Corps launched the first Allied attack near the coast, crossing the Garigliano River to draw German reserves away from Cassino before the main American assault. · Wikipedia: https://en.wikipedia.org/wiki/Battle_of_Monte_Cassino
The American II Corps began its assault across the Rapido River in the Liri Valley, attempting to breach the Gustav Line but meeting fierce German resistance and suffering heavy casualties. · Wikipedia: https://en.wikipedia.org/wiki/Battle_of_Monte_Cassino
General Juin's French Expeditionary Corps, including Moroccan and Algerian troops, attacked through the mountains north of Cassino, making initial gains against the German 5th Mountain Division. · Wikipedia: https://en.wikipedia.org/wiki/Battle_of_Monte_Cassino
The 36th Infantry Division's crossings of the Rapido River were effectively destroyed by German counterattacks, ending the first American attempt to break through the Liri Valley with very heavy losses. · Wikipedia: https://en.wikipedia.org/wiki/Battle_of_Monte_Cassino
The first Allied assault on the Gustav Line ground to a halt as American and British forces failed to break through, with the US 34th Infantry Division fighting house-to-house in Cassino town. · Wikipedia: https://en.wikipedia.org/wiki/Battle_of_Monte_Cassino
The US 34th Infantry Division's attempt to capture Monte Cassino and the town was called off after suffering severe casualties, concluding the first battle without achieving a breakthrough. · Wikipedia: https://en.wikipedia.org/wiki/Battle_of_Monte_Cassino
Believing the abbey was occupied by German observers, Allied headquarters ordered a massive aerial bombardment that reduced the historic monastery to ruins, killing civilians sheltering inside. · Wikipedia: https://en.wikipedia.org/wiki/Bombing_of_Monte_Cassino
New Zealand and Indian troops launched the second Allied assault, with the 4th Indian Division attacking Monte Cassino from the north while New Zealanders struck the town and railway station. · Wikipedia: https://en.wikipedia.org/wiki/Battle_of_Monte_Cassino
Indian Army battalions including the Gurkha Rifles and Rajputana Rifles attacked the steep slopes of Monte Cassino but were pinned down by devastating German fire from the abbey ruins. · Wikipedia: https://en.wikipedia.org/wiki/Battle_of_Monte_Cassino
New Zealand infantry captured the Cassino railway station but were forced to withdraw after German paratroopers launched a fierce counterattack supported by tanks. · Wikipedia: https://en.wikipedia.org/wiki/Battle_of_Monte_Cassino
Following the Allied bombing, German paratroopers of the 1st Fallschirmjäger Division moved into the rubble of the destroyed abbey, turning the ruins into a formidable defensive position. · Wikipedia: https://en.wikipedia.org/wiki/Bombing_of_Monte_Cassino
The third battle began with a devastating artillery and aerial bombardment of Cassino town, followed by New Zealand and Indian infantry assaults against entrenched German paratroopers. · Wikipedia: https://en.wikipedia.org/wiki/Battle_of_Monte_Cassino
New Zealand tanks attempted to push through the rubble-choked streets of Cassino but became trapped by debris and were destroyed by German anti-tank fire and paratrooper counterattacks. · Wikipedia: https://en.wikipedia.org/wiki/Battle_of_Monte_Cassino
General Alexander halted the third assault after three weeks of brutal fighting failed to dislodge the German 1st Fallschirmjäger Division from Cassino town and the abbey heights. · Wikipedia: https://en.wikipedia.org/wiki/Battle_of_Monte_Cassino
General Alexander secretly reorganized Allied forces for a fourth offensive, bringing in the Polish II Corps and shifting the British Eighth Army's main effort to the Cassino sector. ) · Wikipedia: https://en.wikipedia.org/wiki/Operation_Diadem
Operation Diadem began with a massive artillery barrage as the British Eighth Army and US Fifth Army attacked simultaneously along the entire Gustav Line from the sea to the mountains. ) · Wikipedia: https://en.wikipedia.org/wiki/Operation_Diadem
General Anders' Polish II Corps launched its assault on Monte Cassino, attacking the heavily fortified Phantom Ridge and Snakeshead Ridge positions held by German paratroopers. · Wikipedia: https://en.wikipedia.org/wiki/Battle_of_Monte_Cassino
After suffering heavy losses in their initial attacks, the Polish II Corps renewed their assault on Monte Cassino, capturing key positions on the massif after savage close-quarters fighting. · Wikipedia: https://en.wikipedia.org/wiki/Battle_of_Monte_Cassino
The Polish 12th Podolian Lancers Regiment reached the ruins of the abbey and raised the Polish flag, as the surviving German paratroopers withdrew, ending the four-month battle for Monte Cassino. · Wikipedia: https://en.wikipedia.org/wiki/Battle_of_Monte_Cassino