Dee ihe na-esote paragraf a - Mgbe agha ahụ biri, 1st Royal Berkshires jere ozi n'ọchịchị Allied nke Rhineland. Na 16 Febụwarị 1919 Dempsey laghachiri UK na ezumike. N'oge ọkọchị ọ gbara egwuregwu abụọ nke mbụ maka Sussex megide Mahadum Oxford na Northamptonshire. E hiwere 1st Battalion ọzọ na Chiseldon Camp na Wiltshire na June 1919. N'ọnwa Septemba, e zigara ya Iraq, ebe o nyeere aka igbochi nnupụisi ndị Iraq na 1920
Ọ dị mma. N'ọnwa Ọgọstụ n'afọ 1920, battalion ahụ kwagara Iran, ebe ọ bụ akụkụ nke North Persia Force (Norperforce) na Agha Obodo Russia. Mgbe ndị agha ya nọ na Iran, Dempsey malitere okpukpe Pelman. Na ngwụcha afọ 1921, ọ kwagara ọzọ, oge a na Bareilly, India, na Dempsey weghaara ụlọ ọrụ C, mana na 1922 laghachiri England maka ezumike mbụ ya n'ihe fọrọ nke nta ka ọ bụrụ afọ atọ. Ọ laghachiri India n'afọ ahụ tupu ọ laghachi England ọzọ n'afọ 1923, oge a ka ọ were ọkwa na Royal Military College, Sandhurst.