A former defence minister doesn't believe the US will walk away from the AUKUS security pact altogether. 

The Pentagon's started a review of the agreement between Australia, the UK, and the US, which New Zealand remains open to being involved in. 

Officials will assess whether the deal fits with Donald Trump's America First agenda. 

Wayne Mapp told Mike Hosking the US remains fundamentally committed to the partnership. 

He says Australia is America's closest ally in the Asia Pacific —possibly its closest ally in the whole world— and they're hardly going to trash that relationship. 

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