New Zealand sent representatives to the constitutional congresses that led to the union of the six Australian colonies, but decided not to join. During the Buren War and both World Wars, New Zealand soldiers fought alongside Australian soldiers. In recent years, the free trade agreement “Closer Economic Relations” and its predecessors have moved towards ever-converging economic integration. Despite some common similarities, Australian and New Zealand cultures also have their own differences and there are sometimes disagreements that some have declared symptomatic of sibling rivalries.  This often focuses on sport and the economic tensions resulting from the failure of Ansett Australia and Australia`s long-term ban on the import of New Zealand apples.  AANZFTA is Australia`s first transnational free trade agreement. This is the first time that Australia and New Zealand have participated together in the negotiations for a free trade agreement with third countries. This is the first time that ASEAN has begun negotiations on free trade agreements covering all sectors simultaneously, including goods, services, investment and intellectual property. It is therefore the most comprehensive trade agreement ever negotiated by ASEAN. .