de·mo·bi·lize demobilizes demobilizing demobilized in BRIT, also use demobilise If a country or armed force demobilizes its troops, or if its troops demobilize, its troops are released from service and allowed to go home. Both sides have agreed to demobilize 70% of their armies It is unlikely that the rebels will agree to demobilise. + demobilization de·mo·bi·li·za·tion the demobilisation of a 100,000 strong army. to send home the members of an army, navy etc, especially at the end of a war