The position of Under-Secretary of State for War was a British government position, first applied to Evan Nepean (appointed in 1794). In 1801 the offices for War and the Colonies were merged and the post became that of Under-Secretary of State for War and the Colonies. The position was re-instated in 1854 and remained until 1947, when it was combined with that of Financial Secretary to the War Office. In 1964 the War Office, Admiralty and Air Ministry were merged to form the Ministry of Defence, and the post was abolished.
See Under-Secretary of State for War and the Colonies for the period 1801-1854.
In April 1947 the office was combined with that of Financial Secretary to the War Office.
Office reorganised 1 April 1964