1. US Secretary of State John Kerry (centre right), Australian Foreign Minister Julie Bishop (centre left), US Defence Secretary Chuck Hagel (right) and Australian Defence Minister David Johnston (left) arriving
2. SOUNDBITE (English) Chuck Hagel, US Defence Secretary:
"This long-term agreement on rotational deployment of US marines in Darwin and American airmen in northern Australia, will broaden and deepen our alliance's contributions to regional security."
3. Wide of news conference
4. SOUNDBITE (English) John Kerry, US Secretary of State:
"There will be no reintroduction of American combat forces into Iraq."
5. Wide of news conference
6. SOUNDBITE (English) John Kerry, US Secretary of State:
"We are prepared to consider additional political, economic and security options as Iraq starts to build a new government and very much calculated to try to help stabilise the security situation, to expand economic development, and to strengthen the democratic institutions."
7. Wide of news conference
8. SOUNDBITE (English) John Kerry, US Secretary of State:
"This image, perhaps even an iconic photograph, that Julie has just referred to, is really one of the most disturbing, stomach-turning, grotesque photographs ever displayed. Of a 7-year-old child holding a severed head up with pride and with the support and encouragement of a parent. With brothers there. That child should be in school, that child should be out learning about a future, that child should be playing with other kids. Not holding a severed head and out in the field of combat."
9. Wide of news conference
10. SOUNDBITE (English) John Kerry, US Secretary of State:
"And it's no accident that every country in the region is opposed to ISIL (Islamic State group)."
11. Wide of news conference
12. SOUNDBITE (English) John Kerry, US Secretary of State:
"We saw the take-off (of missile that hit flight MH17), we saw the trajectory, we saw the hit, we saw this aeroplane disappear from a radar screen. So there is really no mystery about where it came from, and where these weapons have come from. But we need to have the complete investigation, obviously, to legitimise whatever steps are going to be taken as we go down the road, and that's why we're all pressing so hard for that."
13. Journalist asking question
14. SOUNDBITE (English) Julie Bishop, Australian Foreign Minister:
"Australia would condemn in the strongest possible terms any effort by Russia to enter Ukraine under the guise of carrying out some sort of humanitarian mission."
15. Wide of news conference
16. SOUNDBITE (English) John Kerry, US Secretary of State:
"The United States, I want to make this clear, is absolutely prepared to improve relations with North Korea, if North Korea will honour its international obligations. It's that simple. But make no mistake, we are also prepared to increase pressure, including through strong sanctions and further isolation, if North Korea chooses the path of confrontation."
17. Kerry, Bishop, Hagel and Johnston shaking hands ++AUDIO FADES TO MUTE++
The US and Australia signed a security agreement on Tuesday that will allow the US to station US Marines and airmen in Australia.
US Defence Secretary Chuck Hagel said the agreement "will broaden and deepen our alliance's contributions to regional security."
During a news conference which followed the agreement, US Secretary of State John Kerry told journalists "there will be no reintroduction of American combat forces into Iraq."
The US has conducted a series of airstrikes against Islamic State fighters in Iraq.
The director of operations for the US Joint Chiefs of Staff, has told media that the 15 targeted strikes have slowed the Islamic State's advance but done little to degrade the militants' capacity as a fighting force.
Kerry also described a photograph of a Sydney-born 7-year-old boy clutching the severed head of a Syrian soldier as "disturbing" and "grotesque," and called for international cooperation against the threat posed by foreign fighters returning home from Iraq and Syria.
The Australian newspaper reported on Monday that the image was taken in the northern Syrian city of Raqqa and posted on Twitter by the boy's father, Khaled Sharrouf, an Islamic State fighter who was convicted in Australia of stockpiling bomb-making materials and plotting attacks in Sydney and Melbourne.
Speaking after a US-Australia bilateral security summit in Sydney, Kerry said the image showed why the Islamic State group posed such a threat to the world.
Australian Foreign Minister Julie Bishop said Australia would "condemn in the strongest possible terms" any attempt by Russia to enter Ukraine on the pretence of a humanitarian mission.
A convoy of 280 Russian trucks set off for eastern Ukraine early on Tuesday, one day after agreement was reached on an international humanitarian relief mission.
But the international Red Cross, which is due to coordinate the operation, said it had no information on what the trucks were carrying or where they were going.
Secretary Kerry also said the US was "absolutely prepared" to improve relations with North Korea, but warned of "strong sanctions and further isolation" if they chose to be confrontational.