Conventional categories -- Four worldviews -- On theorizing -- Glentz: Balance of power -- Clausewitz: war as an instrument -- Bernhardi: militaristic imperialism -- Kant: perpetual peace -- Hobson: social democracy -- Angell: interpendence -- Wilson: collective security -- Waltz: neo-realism -- Gilpin: hegemonic change -- Kahn: deterrence -- Gray geopolitics -- Rosecrance: free trade -- Keohane: regimes -- Osgood: tension reduction -- Falk: central guidance -- Anarchic idealist theories -- Hierarchic idealist theories -- Anarchic realist theories -- Hierarchic realist theories

1. International relations -- Philosophy