whAt DoEs thE us think is thE nEw post ColD wAr thrEAt A.thE possiBlE possEssion oF nuClEAr wEApons AnD missilEs By somE CountriEs. B.thE possiBlE ACquisition oF ADvAnCED tEChnology By somE CountriEs. C.nAto's hEsitAtion to BuilD nEw DEFEnsEs. D.thE nEw AlliAnCE in southErn Europ