Introduction : power in the changing global order -- Understanding power -- Power resources -- Hegemony, unipolarity and the US -- The multipolar moment? : the US and the world in the 1990s -- A new era? : the George W. Bush administration's 'war on terror' -- Return to multilateralism? -- Russia as a 'continuing' or 'reviving' great power -- The Russian multipolarity debates -- China : 'rising power' or 'constrained state'? -- China, 'anti-hegemonism' and 'harmony' -- Conclusions : the US, Russia and China in a changing world