Complex sentence: In the nineteenth century, the regiment took part in the Crimean War, the Second Opium War, the Indian Mutiny and the Third Anglo-Burmese War before serving in the Second Boer War of 1899-1902.
Split into simpler sentences: In the nineteenth century, the regiment took part in the Crimean War, the Second Opium War, the Indian Mutiny and the Third Anglo-Burmese War. The regiment went on to serve in the Second Boer War of 1899-1902.