On 18 November, north of Bir el Gubi, the Commonwealth forces started a new offensive, Operation Crusader. On 19 November the "Ariete" Division, in the First Battle of Bir el Gubi repulsed a British attack and on 23 November a great tank battle, Totensonntag, took place in the desert. In Bir el Gubi the "Giovani Fascisti" Regiment and some Bersaglieri units took position in Bir el Gubi. A tank company of the I Battalion of the 32nd Tank Regiment was also sent for support, with ten Fiat L3 tankettes and two M13/40 medium tanks. The Italian soldiers strengthened the existing fortifications, building machine gun and anti-tank gun posts, building barbed wire barriers and digging holes in the ground. These fortifications allowed Bir el Gubi to be defended from attackers coming from any direction. One of the two M13/40s and some of the L3 tankettes, immobilized by mechanical breakdowns, were interred and used as defensive positions. The soldiers took position in the holes in the evening of 1 December, under torrential rain. The garrison also had ten 47/32 mm guns, 24 Breda Mod. 37 machine guns, 12 Mod. 35 anti-tank rifles, six Solothurn S-18/100 anti-tank rifles and eight 81 mm mortars.
Battle
Following the withdrawal of 2nd NZ Division Ritchie had reorganised his rear echelon units to release to the front line 4th Indian Infantry Division's 5th and the 22nd Guards Brigade. By 3 December 11 Indian Brigade was heavily engaged in action against a strongpoint near Bir el Gubi, some 25 miles south of Ed Duda. The 1st and 2nd Battalions of the Italian 136th "Giovani Fascisti" Regiment from this hilltop position successfully fought off repeated attacks by the British armour and Indian infantry units during the first week of December. At 12:00 on 3 December, Allied artillery started shelling the Italian positions, causing some losses. During the night, all the Italian units outside of the perimeter of Bir el Gubi were captured, along with their vehicles and equipment. In the morning of 4 December, the Allied forces launched two attacks against Bir el Gubi. Hundreds of men from the Queen's Own Cameron Highlanders, supported by tanks and by an artillery barrage, attacked the positions of the I Battalion, while the rest of the 11th Indian Brigade, supported by Valentine tanks of the 7th Armoured Division, attacked the lines of the II Battalion, further north. Both attacks were repelled, and the attackers left dozens of killed on the ground; they did manage, however, to encircle the Italian positions. Around 14:00 on the same day, a third attack was launched against the Italian lines; the Italian defenders resisted for several hours in the face of increasing infantry and artillery pressure, but in the evening the 4th Company had to abandon Point 188 and withdrew to Point 184. The L3 tankettes proved useful against infantry, thanks to their two machine guns and their armour, but were powerless against tanks, and all ten of them were destroyed. General Willoughby Norrie had an overwhelming superiority in the area, but he failed to concentrate and co-ordinate the action of his forces. The Italians, instead, effectively coordinated the action of their infantry, artillery, and light tanks. During the fighting, Colonel Ferdinando Tanucci, commander of the Giovani Fascisti Regiment, was wounded; Lieutenant Colonel Alfred George Butler, of Rajputana Rifles, was killed. Between 4 and 7 December the XXX British Corps launched seven attacks, all repelled with heavy losses by the Italian defenders. Hunger and lack of supplies, however, started to weaken the Italian garrison, which asked for reinforcements; Erwin Rommel decided to send armoured forces to support the Italians in Bir el Gubi. At dawn on 5 December, the first German armoured units arrive near Point 188, which they recaptured after a fiery clash between German and British tanks. After this, the German tanks headed towards Bir el Gubi. The Ariete and Trieste Divisions were also sent, but the former was stopped by an Allied attack, and the latter lost its way in the desert. Crüwell was unaware that 4th Armoured Brigade, now with 126 tanks, was over away and he withdrew to the west. The Indian Brigade was broken and had to be withdrawn to refit and arrangements made to bring 22nd Guards Brigade into their place. Tank clashes continued; during the following night the Ariete Division managed to reach Bir el Gubi and joined the German Panzers of general Ludwig Crüwell, and their combined force repelled the last British attacks. With the arrival of the Ariete, the Commonwealth force had lost its numerical superiority, and finally withdrew thus ending the battle.
Aftermath
Crüwell, however, had lost the opportunity to strike a heavy blow on 6 December as 4th Armoured Brigade made no move to close up to 22nd Guards Brigade; he waited too long, and on 7 December the 4th Armoured Brigade closed up. Worse, 15th Panzer's skilful commander, Walter Neumann-Silkow was mortally wounded late on the 6th. Axis forces were later forced to abandon Bir el Gubi with the progress of Operation Crusader.
