 He served as commanding officer of 2nd battalion of the 18th Garhwal Rifles from February 1934 to October 1937 and went on to become Acting Commander of 2nd Indian Infantry Brigade from April to October 1936 and Deputy Military Secretary in India in October 1937.Deedes served in World War II as commander of the Thal Brigade from October 1939, as General Officer Commanding Waziristan District from 12 March 1941.He was Mentioned in Dispatches for Waziristan in 1942 (London Gazette 17/12/42) and 1943 (London Gazette 25/11/43) and was appointed CB in London Gazette 11 June 1942.