The declaration makes it illegal for New Zealand residents to fund or support either group, which join the Islamic State and al-Shabab on the list. It isn’t clear whether either far-right group has a significant presence in New Zealand, but authorities said the Base had attempted to expand into neighboring Australia. Former New Zealand attorney general Christopher Finlayson said in an email that officials were following “standard process” and that many groups on Wellington’s terrorism list were not active in the country. Police officials, in documents supporting the decision, noted the Base’s intention to start a race war and install...