"Oorlogvoering." . . "Military history 20th century." . . "USA." . . . . . "Ethics and the future of conflict lessons from the 1990s" . . "Military history" . . . . . . . . . "Ethics and the future of conflict : lessons from the 1990s" . . . . . . . . . . . . . . . . . . . . . . . . "Since 1900" . . . . "Guerre juste." . . "United States" . . "Gewapende conflicten." . . "sikkerhedspolitik" . . "Gerechter Krieg." . . "Kernwapenpolitiek." . . "internationale konflikter" . . "Chemische wapens." . . "Militärpolitik." . . "Vredesvraagstuk." . . "Ethische aspecten." . . "Relations internationales 1989- ..." . . "États-Unis" . . "Biologische wapens." . .