More than 250 Australian Defence Force troops are being sent to Afghanistan to help with evacuations.
The Taliban has declared the war in Afghanistan is over after insurgents stormed the capital Kabul and the President fled the country.
Now countries around the world are urgently trying to evacuate their citizens from the volatile and fast-changing situation.
There are 130 Australian citizens and more than 200 former embassy guards and interpreters in the country.
The Department of Defence confirmed this evening personnel have already been deployed on a KC-30A which left Amberley in Queensland today.
It will land at Australia's main operating base in the Middle East to assist the US-led operations.
"Two C-17A Globemasters will also depart for the Middle East later this week," a statement from the department said.
"The situation in Afghanistan remains highly volatile and dangerous.
"Defence is taking all necessary precautions to protect its people and those authorised for evacuation. The mission will be constantly assessed against the latest developments.
"Australia's evacuation efforts are being closely coordinated with international partners."
A joint statement from Prime Minister Scott Morrison, Minister for Defence Peter Dutton, and Minister for Foreign Affairs Marise Payne said the situation is volatile.
"The situation on the ground in Kabul, as in the rest of Afghanistan, is evolving rapidly," the statement said.
"As in any crisis situation, the Australian Government's priority is to ensure the safety of its citizens.
"We have over 130 Australians in Afghanistan, working in the UN, NGOs, and elsewhere, and we are working to bring them and their families home.
"We are also assisting those who have been granted humanitarian visas, and others who are in the process of applying for protection."
The government is working with the US, UK, Canada, and other allies and partners.
The statement warned the Taliban "will be held fully accountable for any killing or other mistreatment of Afghan military and other security forces who have surrendered or been captured" and said people should be allowed to leave safely.