After the Shell Crisis of 1915 during World War I, Weizmann was director of the British Admiralty laboratories from 1916 until 1919. In April 1918 at the head of the Jewish Commission, he returned to Palestine to look for "rare minerals" for the British war effort in the Dead Sea. Weizmann's attraction for British Liberalism enabled Lloyd George's influence at the Ministry of Munitions to do a financial and industrial deal with Imperial Chemical Industries (ICI) to seal the future of the Zionist homeland. Tirelessly energetic Weizmann entered London again in later October to speak for a solid hour with the Prime Minister, propped by "The Guardian" and his Manchester friends. At another conference on 21 February 1919 at Euston Hotel the peace envoy, Lord Bryce was reassured by the pledges against international terrorism, for currency regulation and fiscal controls.