When thinking of the world’s naval superpowers, the Royal New Zealand Navy is unlikely to spring to mind. With ~2000 personnel and a handful of ships they may not be taking over the world but they do play an important role in protecting the small Island nation and helping their neighbours. The HMNZS Canterbury F421 was a Leander-class frigate that served in the New Zealand Navy from 1971 – 2005. She had a distinguished career at sea and was sent to Moruroa Atoll in 1973 as a symbolic protest of New Zealand against French nuclear testing. Which provides a fitting connection to the wreck of the Greenpeace Rainbow Warrior that…