Originally Posted by Wikipedia
Britain has however tied itself somewhat to European trade in recent years, forcing New Zealand and Australia to seek new markets and trade with the Asia-Pacific region. New Zealand has a large influence over former British colonies in the Pacific and the British territory of Pitcairn. During the Falklands War New Zealand sided with Britain by cutting off all diplomatic relations with Argentina.
Up to about the 1960s, New Zealand also had extremely close economic relations with the United Kingdom, especially considering the distance at which trade took place. As an example, in 1955, Britain took 65.3 percent of New Zealand's exports, and only during the following decades did this dominant position begin to decline when the United Kingdom joined the European Economic Community (now the European Union) in 1973, with the share of exports going to Britain having fallen to only 6.2 percent in 2000. Historically, some industries, such as dairying, a major economic factor in the former colony, had even more dominant trade links, with 80–100% of all cheese and butter exports going to Britain from around 1890 to 1940.