Second Boer War: British troops made a third unsuccessful attempt to lift the siege of Ladysmith in the Battle of Vaal Krantz.

The Second Boer War, also known as the Boer War, Transvaal War, Anglo–Boer War, or South African War, was a conflict fought between the British Empire and the two Boer republics over Britain's influence in Southern Africa.

The siege of Ladysmith was a protracted engagement in the Second Boer War, taking place between 2 November 1899 and 28 February 1900 at Ladysmith, Natal.

The Battle of Vaal Krantz was the third failed attempt by General Redvers Buller's British army to fight its way past Louis Botha's army of Boer irregulars and lift the Siege of Ladysmith. The battle occurred during the Second Boer War.