In 1890, the battle over tobacco began. Jamal al-Din al-Afghani boycotted tobacco because a Persian ruler sold a concession to the British in Persia. This battle caused riots to break out and the concession had to be cancelled.
In 1899, the Boers had blamed the British for everyone trying to take them over so they started a war against them. This was the first modern war. The British fought back by burning Boer farms and imprisoning women and children in concentration camps.