Australia and New Zealand: separate states but path-dependent

Australia and New Zealand (Aotearoa) have shared almost two centuries of close relations created through close geographic proximity, shared membership of political associations, and frequent policy exchange. The relevant context has shifted from the British Empire and Commonwealth to a rapidly globalizing world under US military hegemony. Australia and New Zealand were among the early settler colonies of the British Empire and this article argues that, as such, the settler colonies helped shape the form of the Empire, and subsequently the Commonwealth. This history created strong, separate, if somewhat similar, traditions of independent political experimentation. This article explores different models for explaining the cross-Tasman relationship and concludes that the path-dependent approach works best. The path was also influenced by external shocks, notably the second world war and Britain's moves towards Europe, and it was these shocks that created the necessary ruptures to create change. The first world war had catapulted Australia and New Zealand towards separate nationhood, and simultaneously strengthened their cultural and political links. The second world war pushed Australia towards the USA and led both Australia and New Zealand to develop a more explicit role as regional leaders in the Pacific. For New Zealand, Britain's membership of the European Community created an economic crisis and politico-cultural stresses which are reverberating still. Such shocks created the preconditions also for closer association, exemplified in the CER Treaty, which in turn draws upon historical precedents and experiences. <br />