africa aspectreligieux bürgerkrieg congresses congrès engineering europe fredsbevarandestyrkor fredsbyggande friede friedenssicherung history international internationalcooperation internationalrelations internationalsecurity internationelltsamarbete military militaryrelations militaryscience militäraförbindelser nationalsecurity northatlantictreatyorganization other peace-building peacekeepingforcesunitednations politics politicsandgovernment politicsandwar publicsafety relationsmilitaires religion religionandinternationalrelations religionetrelationsinternationales religionochinternationellarelationer religiousaspects religiösaaspekter schutz security sicherheit socialconditions state säkerhetspolitik sécuritépublique technology unitedstates vereintenationenfriedensmission violence zivilbevölkerung