HMNZS Canterbury (F421) was one of two broad beam Leander-class frigates operated by the Royal New Zealand Navy (RNZN) from 1971 to 2005. She was built in Scotland and launched in 1970. Commissioned in 1971, Canterbury saw operational service in much of Australasia and other regions like the Persian Gulf. She undertook operations such as supporting UN sanctions against Iraq and peace-keeping in East Timor. With her sister ship HMNZS Waikato she relieved the Royal Navy frigate HMS Amazon in the Indian Ocean during the Falklands War. Early in HMNZS Canterbury's career, in 1973, she relieved the frigate HMNZS Otago, as part of a unique, Anzac, naval operation or exercise at Moruroa during anti-nuclear protests, supported by a large RAN tanker, providing fuel and a large platform for Australia