Australian Greens Peace and Disarmament spokesperson Senator Jordon Steele-John has reiterated his calls to fundamentally restructure our defence force, after a speech prepared for ADF Chief Angus Campbell - released under FOI - warned climate change could stretch our capacity and had the potential to "exacerbate conflict".

Senator Steele-John agreed climate change was the biggest threat in our region and said preparing our defence force for the impacts - food and water shortages, increasing natural disasters and mass displacement of people - must be an absolute priority.

The Greens call on the Morrison Government to categorically rule out any escalation of Australia’s involvement in US-led military operations in the Persian Gulf, said Leader of the Greens Senator Richard Di Natale.

“Morrison has already embroiled Australia in the increasing tensions between the United States and Iran by joining the US-led military operations in the Persian Gulf.  As the Greens said at the time, it is folly to follow Donald Trump into yet another American misadventure in the Middle East”, said Senator Di Natale.

Australian Greens Peace and Disarmament spokesperson Senator Jordon Steele-John has reiterated calls for Australia's defence force to urgently develop and implement a climate change strategy, after revelations today that senior bureaucrats have been wargaming climate change scenarios.

Senator Steele-John also called on the government to immediately release the details of the climate change scenarios, which they have so far refused to release through Freedom Of Information.