Between the wars Gracey became an instructor at the Royal Military College, Sandhurst, in 1925, commanding one of the cadet companies. After this he attended the
Staff College, Quetta, from 1928 to 1929, and his fellow students included
Colin Gubbins,
John Crocker,
Eric Goddard,
Lionel Cox, and
Henry Davies, among many others, who were destined to achieve
general officer rank. In peacetime, promotion came slowly and
brevet ranks were used as an interim step to the next rank up for officers who performed well. In 1930, Gracey received a promotion to brevet major. In late 1931 he was appointed as GSO2 at
GHQ India and by the time this appointment finished in late 1935 he had received his promotion to major. In early 1937 he was given another GSO2 posting at Western Command in
India. Having waited so long to be raised from captain to major, his next advancements to brevet lieutenant-colonel and lieutenant-colonel came quite quickly, in January 1938 and February 1939. ==Second World War==