Operations against the Marri and Khetran tribes (also known as the Marri Punitive Expedition) was the British name for a punitive expedition carried out against the Marri and Khetran tribes of Balochistan, British India between February and April 1918. The Marri rose against the British authorities around 18 February, encouraged by rumours that the British were short of manpower due to the First World War. British attempts at conciliation were repulsed and, on 20 February, a major attack was made by 1,000 – 3,000 Marri upon the British post at . This attack was repulsed by a much smaller British force that inflicted heavy losses upon the Marri. A subsequent withdrawal of British forces from Kohlu and its occupation by the Marri led the Khetrans to join the rising. The town of Barkhan was o