The Waziristan Revolt of 1919-1921 was sparked by the Afghan invasion of British India in 1919. Though the British quickly defeated the Afghans, the Waziri tribesmen gave the colonial forces a very difficult fight. Many of the Waziri men were veterans of the British-led and controlled Indian Army and used modern military tactics and modern Lee Enfield rifles against the British and Indian forces sent into Waziristan.