demobilization
noun /diːˌməʊbəlaɪˈzeɪʃn/
  /diːˌməʊbələˈzeɪʃn/
(British English also demobilisation)
 (also British English, informal demob)
 [uncountable]- the act of releasing somebody from military service, especially at the end of a war
- On demobilization he returned to university and graduated in 1948.