Is the postwar partnership between Europe and America now a historical artefact? Much depends on whether the notion of America as a 'European power' still holds. The US attained this status through a strategy of 'empire by integration', extending its postwar 'empire' through negotiation and support for European integration, and envisaging a collectively powerful Europe as fundamental to the health of its most important security alliance. The election of George W. Bush, the terrorist attacks of 9/11, and the war in Iraq are often seen as producing deep ruptures both in American policy towards Europe and the transatlantic alliance. Yet, the embrace of a new US policy of 'disaggregation' of Europe is unproven, and in any event unlikely to mark...