British garrison at Ladysmith no relation Piet Cronjé
Boers besiege Ladysmith, Mafeking and Kimberley
The Boers struck first on 12 October at the Battle of Kraaipan, an attack that heralded the invasion of the Cape Colony and Colony of Natal between October 1899 and January 1900.: 20  With speed and surprise, the Boers drove quickly towards the British garrison at Ladysmith and the smaller ones at Mafeking and Kimberley. The quick Boer mobilisation resulted in early military successes against scattered British forces. Sir George Stuart White, commanding the British division at Ladysmith, unwisely allowed Major-General Penn Symons to throw a brigade forward to the coal-mining town of Dundee (also reported as Glencoe), which was surrounded by hills. This became the site of the first engagement of the war, the Battle of Talana Hill. Boer guns began shelling the British camp from the summit of Talana Hill at dawn on 20 October. Penn Symons immediately counter-attacked: His infantry drove the Boers from the hill, for the loss of 446 British casualties, including Penn Symons.
Another Boer force occupied Elandslaagte, which lay between Ladysmith and Dundee. The British under Major General John French and Colonel Ian Hamilton attacked to clear the line of communications to Dundee. The resulting Battle of Elandslaagte was a clear-cut British tactical victory,: 29  but Sir George White feared that more Boers were about to attack his main position and so ordered a chaotic retreat from Elandslaagte, throwing away any advantage gained. The detachment from Dundee was compelled to make an exhausting cross-country retreat to rejoin White's main force. As Boers surrounded Ladysmith and opened fire on the town with siege guns, White ordered a major sortie against their positions.: 33  The result was a disaster, with 140 men killed and over 1,000 captured. The Siege of Ladysmith began: It was to last several months.
Meanwhile, to the north-west at Mafeking, on the border with Transvaal, Colonel Robert Baden-Powell had raised two regiments of local forces amounting to about 1,200 men in order to attack and create diversions if things went amiss further south. As a railway junction, Mafeking provided good supply facilities and was the obvious place for Baden-Powell to fortify in readiness for such attacks. However, instead of being the aggressor, Baden-Powell was forced to defend Mafeking when 6,000 Boer, commanded by Piet Cronjé, attempted a determined assault on the town. This quickly subsided into a desultory affair, with the Boers prepared to starve the stronghold into submission. So, on 13 October, the 217-day Siege of Mafeking began.
Lastly, over 360 kilometres (220 mi) to the south of Mafeking lay the diamond mining city of Kimberley, which was also subjected to a siege. Although not militarily significant, it nonetheless represented an enclave of British imperialism on the borders of the Orange Free State and was hence an important Boer objective. In early November, about 7,500 Boer began their siege, again content to starve the town into submission. Despite Boer shelling, the 40,000 inhabitants, of which only 5,000 were armed, were under little threat, because the town was well-stocked with provisions. The garrison was commanded by Lieutenant Colonel Robert Kekewich, although Cecil Rhodes was also a prominent figure in the town's defences.
Siege life took its toll on both the defending soldiers and the civilians in the cities of Mafeking, Ladysmith, and Kimberley as food began to grow scarce after a few weeks. In Mafeking, Sol Plaatje wrote, "I saw horseflesh for the first time being treated as a human foodstuff." The cities under siege also dealt with constant artillery bombardment, making the streets a dangerous place. Near the end of the siege of Kimberley, it was expected that the Boers would intensify their bombardment, so Rhodes displayed a notice encouraging people to go down into shafts of the Kimberley Mine for protection. The townspeople panicked, and people surged into the mine-shafts constantly for a 12-hour period. Although the bombardment never came, this did nothing to diminish the anxious civilians' distress. The most well-heeled of the townspeople, including Cecil Rhodes, sheltered in the Sanatorium, site of the present-day McGregor Museum; the poorer residents, notably the black population, did not have any shelter from shelling.
In retrospect, the Boers' decision to commit themselves to sieges (Sitzkrieg) was a mistake and one of the best illustrations of their lack of strategic vision. Historically, it had little in its favour. Of the seven sieges in the First Boer War, the Boers had prevailed in none. More importantly, it handed the initiative back to the British and allowed them time to recover, which they did. Generally speaking, throughout the campaign, the Boers were too defensive and passive, wasting the opportunities they had for victory. Yet that passiveness also testified to the fact that they had no desire to conquer British territory, but only to preserve their ability to rule in their own territory.: 82–85First British relief attempts
On the 31st October 1899, General Sir Redvers Henry Buller, a much respected commander, arrived in South Africa with the Army Corps, made up of the 1st, 2nd and 3rd divisions. Buller originally intended an offensive straight up the railway line leading from Cape Town through Bloemfontein to Pretoria. Finding on arrival that the British troops already in South Africa were under siege, he split his army corps into detachments to relieve the besieged garrisons. One division, led by Lieutenant General Lord Methuen, was to follow the Western Railway to the north and relieve Kimberley and Mafeking. A smaller force of about 3,000, led by Major General William Gatacre, was to push north towards the railway junction at Stormberg and secure the Cape Midlands District from Boer raids and local rebellions by Boer inhabitants. Buller led the major part of the army corps to relieve Ladysmith to the east.
The initial results of this offensive were mixed, with Methuen winning several bloody skirmishes in the Battle of Belmont on 23 November, the Battle of Graspan on 25 November, and at a larger engagement, the Battle of Modder River, on 28 November resulting in British losses of 71 dead and over 400 wounded. British commanders had been trained on the lessons of the Crimean War and were adept at battalion and regimental set pieces, with columns manoeuvring in jungles, deserts and mountainous regions. What British generals failed to comprehend was the impact of destructive fire from trench positions and the mobility of cavalry raids. The British troops went to war with what would prove to be antiquated tactics—and in some cases antiquated weapons—against the mobile Boer forces with the destructive fire of their modern Mausers, the latest Krupp field guns and their novel tactics.The middle of December was disastrous for the British Army. In a period known as Black Week (10–15 December 1899), the British suffered defeats on each of the three fronts. On 10 December, General Gatacre tried to recapture Stormberg railway junction about 80 kilometres (50 mi) south of the Orange River. Gatacre's attack was marked by administrative and tactical blunders and the Battle of Stormberg ended in a British defeat, with 135 killed and wounded and two guns and over 600 troops captured.
At the Battle of Magersfontein on 11 December, Methuen's 14,000 British troops attempted to capture a Boer position in a dawn attack to relieve Kimberley. This too turned into a disaster when the Highland Brigade became pinned down by accurate Boer fire. After suffering from intense heat and thirst for nine hours, they eventually broke in ill-disciplined retreat. The Boer commanders, Koos de la Rey and Piet Cronjé, had ordered trenches to be dug in an unconventional place to fool the British and to give their riflemen a greater firing range. The plan worked, and this tactic helped to write the doctrine of the supremacy of the defensive position, using modern small arms and trench fortifications. The British lost 120 killed and 690 wounded and were prevented from relieving Kimberley and Mafeking. A British soldier said of the defeat:
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