General Sir Redvers Buller, VC, commander of the British forces in Natal, was attempting to relieve a British force besieged in Ladysmith. The Boers under General Louis Botha held the Tugela River against him. Although Botha's men were outnumbered, they were mostly equipped with modern Mauser rifles and up-to-date field guns, and had carefully entrenched their positions. In late December, 1899, Buller made a frontal assault on the Boer positions at the Battle of Colenso. The result was a heavy British defeat.