The Battle of Elands River was an engagement of the Second Boer War that took place between 4 and 16 August 1900 in western Transvaal. The battle was fought at Brakfontein Drift near the Elands River between a force of 2,000 to 3,000 Boers and a garrison of 500 Australian, Rhodesian, Canadian and British soldiers, which was stationed there to protect a British supply dump that had been established on the route between Mafeking and Pretoria. The Boer force, which consisted of several commandos under the overall leadership of Koos de la Rey, was in desperate need of provisions after earlier fighting had cut it off from its support base. As a result, it was decided to attack the garrison in an effort to capture its supplies.
Over the course of 13 days, the Elands River supply dump was heavily shelled from several artillery pieces that were set up around the position, while Boers equipped with small arms and machine guns surrounded the garrison and kept the defenders under fire. Outnumbered and isolated, the defenders were asked to surrender by the Boer commander, but refused. The siege was subsequently lifted when the garrison was relieved by a 10,000-strong flying column led by Lord Kitchener. The relief effort, although successful, drew forces away from efforts to capture a Boer commander, Christiaan de Wet, who ultimately managed to evade British capture. This, along with the difficulty the British had in effecting the relief, buoyed Boer morale although the defenders' efforts also drew praise from Boer commanders.
The first months of the Second Boer War were characterised by the use of large-scale conventional infantry forces by the British, which suffered heavy casualties in engagements with highly mobile Boer forces. Following this, a series of British counter-offensives, including mounted infantry units from the Australian colonies and Canada, among others, managed to capture and secure the main population centres in South Africa by June 1900. Much of the Boer force surrendered with the loss of their supply bases. In response, the Boers, including many who dishonoured their parole after having surrendered, and others who had melted away into civilian life, began a guerrilla warfare campaign. Operating in small groups, Boer commandos attacked columns of troops and supply lines, sniping, ambushing and launching raids on isolated garrisons and supply depots.
As a defensive measure to protect the supply route between Mafeking and Pretoria, the British had established a garrison along the Elands River. Positioned near Brakfontein Drift, now the town of Swartruggens, about 173 kilometres (107 mi) west of Pretoria, the location was developed into a supply dump by the British to supply forces operating in the area and to serve as a way point on the route between Rustenburg and Zeerust. By mid-1900, the supplies that were located at Elands River included between 1,500 and 1,750 horses, mules and cattle, a quantity of ammunition, food and other equipment worth over 100,000 pounds, and over 100 wagons. As the supplies were vulnerable to Boer raids, a garrison, spread across several positions, had been established.
The main position was at a farm located about 1 kilometre (0.6 mi) away from the river, occupying a small ridge, while two smaller positions were established on hills to the south, closer to the river, which were later called Zouch's Kopje and Butters' Kopje. The area was bracketed by two creeks – the Brakspruit to the north and the Doornspruit to the south – which flowed west into the river. A telegraph line ran through the farm along the Zeerust–Rustenburg road, which crossed the river at a ford about 1 kilometre (0.62 mi) west of the farm. While the ground to the north, south and west of the supply dump dropped to the river where the Reit Valley opened towards Zeerust, 50 kilometres (31 mi) away, the ground to the east of the farm rose towards a high point which came to be known as Cossack Post Hill. The hill was used by the garrison defending the post to send messages to Rustenburg – 70 kilometres (43 mi) away – using a heliograph.
On 3 August, an 80-wagon supply convoy arrived at Elands River from Zeerust, where they were to wait for their escort, a column of 1,000 men from the New South Wales Imperial Bushmen along with South African irregulars, commanded by General Frederick Carrington, to arrive from Mafeking. Desperate for provisions, Boer forces decided to attack the garrison with a view to securing the supplies located there. Prior to the battle, the garrison had received intelligence warning them of the attack. As a result, some actions were taken to fortify the position, with a makeshift defensive perimeter being established utilising stores and wagons to create barricades. Little attempt had been made to dig-in, as the ground around the position was hard and the garrison lacked entrenching tools.
The garrison defending the Elands River post consisted of about 500 men. The majority were Australians, comprising 105 from A Squadron of the New South Wales Citizen Bushmen, 141 from the Queensland Citizen Bushmen, 42 Victorians and nine Western Australians from the 3rd Bushmen Regiment, and two from Tasmania. In addition, there were 201 Rhodesians from the British South Africa Police, the Rhodesia Regiment, the Southern Rhodesian Volunteers, and the Bechuanaland Protectorate Regiment, along with three Canadians and three Britons. A British officer, Lieutenant Colonel Charles Hore, was in overall command. Their only fire support was one or two Maxim machine-guns and an antiquated 7-pounder screw gun, for which there was only about 100 rounds of ammunition. In addition to the garrison, there were civilians, consisting of Africans working as porters, drivers, or runners and about 30 loyalist European settlers who had moved to the farm prior to being evacuated. Against this, the Boer force, consisting of between 2,000 and 3,000 men drawn from the Rustenburg, Wolmaransstad and Marico commandos, under the overall command of Generals Koos de la Rey and Hermanus Lemmer, possessed five or six 12-pounder field guns for indirect fire, three quick-firing 1-pound pom-poms, which could provide rapid direct fire support, and two machine guns.
The Boer surrounded the garrison during the night while the latter were occupied singing around their campfires, and began their attack early on 4 August after the garrison had been stood down for breakfast. Rifle shots from snipers positioned in the riverbed announced the commencement of the attack. They were followed by an intense artillery barrage from the Boer guns. One pom-pom and a 12-pounder engaged one of the outposts from the south-west from behind an entrenched position about 2,700 metres (3,000 yd) away on the opposite side of the river, while the main position was engaged by three guns positioned to the east along with a Maxim gun, snipers, a pom-pom and an artillery piece in multiple positions to the north-west about 1,800 metres (2,000 yd) away. A third firing point, about 3,900 metres (4,300 yd) away, consisting of an artillery piece and a pom-pom, engaged the garrison from high ground overlooking the river to the west. In response, the defenders' screw gun returned fire, destroying a farmhouse from which Boers were firing; however, the gun soon jammed. Unanswered, the Boer barrage of around 1,700 shells devastated the oxen and killed around 1,500 horses, mules and cattle. Those that remained alive were set free to avoid a stampede. In addition, the telegraph line and considerable stores were destroyed, and a number of casualties inflicted.
In an effort to silence the guns, a small party of Queenslanders under Lieutenant James Annat, sallied 180 metres (200 yd) to attack one of the Boer pom-pom positions, forcing its crew to pack up their weapon and withdraw. Nevertheless, the other guns remained in action and the barrage continued throughout the day, before easing as night fell. The defenders then used the brief respite to begin digging in, using their bayonets, and to clear away the dead animals. Casualties during the first day amounted to at least 28, of which eight were killed.