Guerrilla tactics were used extensively by the forces of the Boer republics in the First and Second Boer Wars in South Africa (1880–1881; 1899–1902) against the invading British Army. In the First Boer War, the Boer commandos wore their everyday dull-coloured farming clothes. The Boers relied more on stealth and speed than discipline and formation and, being expert marksmen using smokeless ammunition, the Boer were able to easily snipe at British troops from a distance. So the British Army relaxed their close-formation tactics. The British Army had changed to Khaki uniforms, first used by the British Indian Army, a decade earlier, and officers were soon ordered to dispense with gleaming buttons and buckles which made them conspicuous to snipers.