Lord Ashley was a cadet in the Eton College contingent of the
Officers' Training Corps. He was commissioned a
second lieutenant in the 94th (Dorset & Somersetshire Yeomanry) Field Brigade, Royal Artillery, on 26 June 1925. On 1 May 1926, he transferred to the
Royal Wiltshire Yeomanry with the same rank. Lord Ashley was promoted to lieutenant on 12 March 1929. Soon after, on 25 May 1929, he was seconded away from the regiment to serve, from 19 August, as an
aide-de-camp to
Sir Frederick Sykes,
Governor of Bombay, and restored to the establishment on 19 April 1930. He was restored to his unit on 2 May 1931. Lord Ashley was promoted to captain on 26 June 1937, and to major on 5 March 1938. On 5 January 1940, he was removed from the Wiltshire Yeomanry and placed on the general list of Yeomanry officers. Major Lord Ashley was transferred to the
Intelligence Corps on 22 July 1940, having requested to serve as a captain during World War II. He served with the
Auxiliary Units, which were highly covert
Resistance groups trained to engage and counteract the expected invasion of the United Kingdom by
Nazi Germany. Members of the Auxiliary Unit were stationed in covert hidden bunkers scattered throughout Great Britain. While Major Lord Ashley was trained at
Coleshill House near
Highworth, Wiltshire, specific details regarding his assignments and operational base remain classified. On 18 December 1941, he was transferred to the Territorial Army reserve of officers for the
Royal Armoured Corps,
Royal Tank Regiment. He was posthumously awarded the
Efficiency Decoration in 1947. ==Order of St John==