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An international affairs expert says our deployment of a further 30 defence force personnel to Britain to train Ukranian soldiers will be a strong selling point for the Prime Minister's visit to the US.
The training-only mission, which goes until the end of July, will include sessions on how to use light artillery guns.
The weapon is only used by a handful of countries worldwide, including New Zealand.
International law professor Al Gillespie of Waikato University joins us.