Prime Minister John Key defended the type of vehicles the New Zealand Defence Force is using in Afghanistan, not as the best but as the "best available".
He also said the Government had never declined any request by the Defence Force for equipment in Afghanistan.
Mr Key gave more details about an earlier approach to the United States by New Zealand to sound out the potential for more highly protected vehicles.
He said that after the death of Lieutenant Tim O'Donnell in 2010 the NZ Defence Force undertook an equipment review, exploring the possibility of getting mine-resistant armour protected (MRAP) vehicles, but they were "unavailable."
Mr Key said he was a political, not a technical expert. "I can simply take advice from the experts."