The battle of Kassala
In Khartoum, as in almost everywhere in Africa, British officials learned, at a quarter past eight that Monday evening, of the declaration of war that was to come into effect at midnight. Immediately, code messages were sent to Gallabat and Kassala, relaying the news and warning of a likely imminent Italian strike. Typically enough though, the cable and phone links to Kassala had broken down, leaving the local garrison, comprised of No. 5 Motor Machine-Gun Company and No. 6 Mounted Infantry Company of the Sudan Defence Force, as well as around 300 Ethiopians, mostly exiles living in Sudan. Along with the small force of local policemen, the British could count on around 1000 men defending Kassala. Furthermore, No. 3 Motor Machine-Gun Company was held in reserve to the west, and would need at least half a day to arrive.
A "home-made" armored car of the SDF stationed at Kassala
Kassala, on the long eastern loop of the Sudan Railway, was a provincial town of some importance. It was situated on the river Gash, about 20 miles from the point on the frontier to which ran the one good road—the Via Imperiale—from Asmara, the Eritrean capital. Kassala was an obvious first step in an advance towards either Khartoum or Atbara in Sudan, as well as representing a gateway by which rebels within Ethiopia could be reached.
Kassala on the Sudanese-Ethiopian frontier
The British planned to hold Kassala if possible, but, if faced with overwhelming enemy resistance, intended to have their Sudanese units execute a fighting retreat, inflicting as many casualties upon the enemy whilst minimizing their own.
The Italian plan, which had been on the drawing board for months, involved the use of a full colonial brigade and a few squadrons of cavalry, giving them an almost 3-1 advantage in numbers over their foes. Moreover, they hoped to benefit from the element of surprise and from rapid maneuver of their few mobile assets to trap the local British forces.
Italian forces were split into three columns plus the cavalry vanguard. That night, small formations of cavalry, with the lead one headed by Lieutenant Francesco Santasilia di Torpino (who has also in overall command of the mounted formations) started quietly making their way north west, starting from both sides of the Gash, more than 30 km away from Kassala on each side. As dawn came, the central column also started making its way directly towards Kassala. Their attack was preceded by a short air-raid by a group of three old Savoia-Marchetti SM.81, which dropped both high-explosive and incendiary bombs upon the unsuspecting British camp, as well as a short artillery bombardment, with both causing some confusion in the British ranks.
Italian colonial artillery bombarding British positions at Kassala
At first, as the central column advanced towards Kassala, they encountered a group of Ethiopian exiles which were still defending their camp outside the town, and engaged into a short firefight with them. Soon after though, the Ethiopian patriots broke ranks and started fleeing towards the main British positions, thus putting themselves in the line of fire of the Italian Askaris, with many of them ending up being gunned down.
High on their success, the Italian officers ordered their men to continue advancing towards the main British positions, without bothering to properly regroup. The Askaris, in many cases fixing their bayonetts, raced towards the line of buildings where they knew the British soldiers * were, and came under intense machine-gun and rifle fire from various point along the line. While the fire of the Sudanese soldiers did manage to stop most of the Italian wave, they had not managed to form a coherent line, meaning there were still gaps in the field of fire, through which many Italian-led soldiers advanced. What followed were, in some cases savage, close-quarter fighting lasting for almost half an hour. Then, as if almost on purpose, both sides began to disengage simultaneously, with the Sudanese falling back a couple of blocks in order to form a secure line and the battered Askaris retreating towards there comrades that had taken up positions in the open along the small canal running on the edge of town.
The British, concentrating their armoured cars, then attempted to launch a flanking attack upon the central Italian column. Even though one armored car was taken out by Italian artillery, the attack showed promise, yet it was decided to break it off after the other two Italian columns were spotted attempting to flank the town. The eastern column appeared to be comprised of only foot soldiers, whereas dust from vehicles gathered above the western one. Even so, the decision wastaken to head west, in the hope of linking up with No. 3 Company. What mattered above all else was speed, in order to evacuate the town before the Italian columns got to encircle it. The need for speed however turned the maneuver into a chaotic mess, as small detachments made their way west as soon as possible. Cynically, the Ethiopian patriots were ordered to form up the rearguard.
As the small groups of Sudanese soldiers and British officers and officials began making their way west, they came under fire from di Torpino's riders, which had dismounted and ambushed the leading vehicles. This gave enough time to the western Italian column, a rather small motorized force spearheaded by a couple of tankettes, to link up with the blocking force of cavalry.
Italian motorized forced making their way across the African savannah in order to trap British forces
The arrival of the western column, along with increasingly accurate artillery fire, forced No.5 and No.6 company to stop their retreat and head back towards to relative safety of Kassala, hoping in the speedy arrival of No. 3 Company. They were however not the only ones waiting for them. The possibility that the Kassala garrison might be reinforced had always been factored into Italian plans, and when the Fiat Cr.42 sent out to patrol the western approach to Kassala spotted the rising dust column and radioed back, the Italian commanders began implementing the next phase of their plan.
The infantry ring around the besieged British forces was tightened, although several lorries packed with SDF soldiers did manage to escape in the meantime, and made their way north. The cavalry and the motorized forces were split and sent both south and north of the road and railway line running west, with each group being assigned one L3/35 tankette (of the other two, one had been destroyed by enemy fire and the other had broken down and was towed away for repairs).
As No.3 approached late in the day, they found the Italians already waiting for them, with infantry dug in facing both sides (the western approach and Kassala). One half-harted attempt to break through was attempted, which only managed to link up with a spearhead of a couple of dozen soldiers from No.5 Company trapped in Kassala, before turning back, owing to intense enemy rifle and machine gun fire, artillery strikes from the batteries arranged to cover the approach, and, more importantly, from the sight of the two Italian columns to the north and south attempting to flank them. Leaving the battlefield (and thus abandoning 3 armored cars a couple of trucks which had been disabled), No.3 successfully disengaged and managed to to avoid the capture of all but one platoon, which had been acting as a rearguard. An airstrike by half a dozen Italian aircraft returning to the battlefield caused some damage, with strafing and bomb damage taking out a further 2 trucks, but with visibility poor as the sun set, the Regia Aeronautica aircraft also managed to hit their own men, killing and wounding almost 20 men from di Torpino's cavalry unit, with the lieutenant himself being almost killed as a piece of shrapnel it him in the rear. While he did recover from it, his riding days were over.
With the counterattack beaten back and No.3 Company retreating, the remaining men trapped in Kassala decided to take up the Italian offer broadcast to them and surrendered. Overall, the British had lost 436 men killed and 623 captured**. They also suffered 7 armored cars destroyed, 3 damaged and 5 captured, along with a sizeable number of trucks (of whom some were later repaired by the Italians), weapons and ammunition stores.
Italy suffered 702 men killed and wounded and 9 captured, as well as 1 tankette destroyed and 1 damaged.
* - most of the men in the SDF units though were locals, with actual British men only acting as officers
** - this number includes the approximately 300 Ethiopian rebels