the British Army of the Rhine. Churchill was one of the few government figures who opposed harsh measures against the defeated Germany, and he cautioned against demobilising the German Army, warning that they may be needed as a bulwark against threats from the newly established Soviet Russia. He was an outspoken opponent of Vladimir Lenin's new Communist Party government in Russia. He initially supported the use of British troops to assist the anti-Communist White forces in the Russian Civil War, but soon recognised the desire of the British people to bring them home. After the Soviets won the civil war, Churchill proposed a cordon sanitaire around the country. In the Irish War of Independence, he supported the use of the para-military Black and Tans to combat Irish revolutionaries. After British troops in Iraq clashed with Kurdish rebels, Churchill authorised two squadrons to the area, proposing that they be equipped with mustard gas to be used to "inflict punishment upon recalcitrant natives without inflicting grave injury upon them", although this was never implemented. More broadly, he saw the occupation of Iraq as a drain on Britain and proposed, unsuccessfully, that the government should hand control of central and northern Iraq back to Turkey. Secretary of State for the Colonies: 1921–1922 Churchill became Secretary of State for the Colonies in February 1921. The following month, the first exhibit of his paintings was held; it took place in Paris, with Churchill exhibiting under a pseudonym. In May, his mother died; followed in August by his two-year-old daughter Marigold who succumbed to septicaemia. Marigold's death devastated her parents and Churchill was haunted by the tragedy for the rest of his life. Churchill was involved in negotiations with Sinn Féin leaders and helped draft the Anglo-Irish Treaty. Elsewhere, he was responsible for reducing the cost of occupying the Middle East, and was involved in the installations of Faisal I of Iraq and his brother Abdullah I of Jordan. Churchill travelled to Mandatory Palestine where, as a supporter of Zionism, he refused an Arab Palestinian petition to prohibit Jewish migration to Palestine. He did allow some temporary restrictions following the 1921 Jaffa riots. In September 1922, the Chanak Crisis erupted as Turkish forces threatened to occupy the Dardanelles neutral zone, which was policed by the British army based in Chanak (now Çanakkale). Churchill and Lloyd George favoured military resistance to any Turkish advance but the majority