Mr Brownlee would not comment on whether New Zealand's defence spending will be boosted. He said the military spending of allies did not influence how much New Zealand invested.
"The New Zealand Defence white paper will be released in the coming weeks. New Zealand's defence relationship with Australia is our closest and most significant."
Strategic analyst Paul Buchanan believes Australia's increased military spending will have an impact on New Zealand's defence budget.
"They have bigger problems than we do, but it's like a little brother thing; if the big brother sees threats then we need to pay attention," he said.
"Although some of them may not be applicable to us, and the bigger brother has more resources available to discern those threats."
New Zealand may feel the pressure to increase its naval might.
"We have an army-centric military which is very odd for a maritime nation like New Zealand," he said.
Because threats to New Zealand are increasing, Mr Buchanan said that needed to be reflected in the white paper.
"There's great power rivalries, with China and now Russia back into the Pacific."