2001- 2001-2009 20thcentury 21esiècle 21stcentury airforces airpower armedforces civil-militaryrelations counterinsurgency effects-basedoperations(militaryscience) employment enlistment etc états-unis failedstates foreignrelations histoire history immigrants internalsecurity internationalcooperation internationalsecurity management militarypolicy nation-building nationalism nationalsecurity operationenduringfreedom opérationlibertéimmuable opérationsbaséessurleseffets(sciencemilitaire) opérationsdestabilisation organization planning politicalstability politicsandgovernment postwarreconstruction recruiting unitedstates waronterrorism