Rubuta ci gaba ga wannan sakin layi - Bayan yakin ya ƙare 1st Royal Berkshires ya yi aiki a cikin Allied occupation na Rhineland. A ranar 16 ga Fabrairun 1919 Dempsey ya koma Burtaniya a kan izini. A lokacin bazara ya buga wasanni biyu na farko na wasan kurket don Sussex da Jami'ar Oxford da Northamptonshire. An sake kafa Bataliya ta 1 a Chiseldon Camp a Wiltshire a watan Yunin 1919. A watan Satumba an tura shi zuwa Iraki, inda ya taimaka wajen murkushe tawayen Iraqi na 1920
Ka yi haƙuri. A watan Agusta 1920, rundunar ta koma Iran, inda ta zama wani bangare na Arewacin Farisa (Norperforce) a cikin Yaƙin Basasa na Rasha. Yayin da rundunarsa ke zaune a Iran, Dempsey ya ɗauki Pelmanism. A ƙarshen 1921 ya sake komawa, wannan lokacin zuwa Bareilly, Indiya, kuma Dempsey ya karɓi Kamfanin C, amma a 1922 ya koma Ingila don hutu na farko a kusan shekaru uku. Ya koma Indiya daga baya a cikin shekarar kafin ya sake komawa Ingila a 1923, a wannan lokacin don karɓar alƙawari a Kwalejin Soja ta Royal, Sandhurst.