The prime minister and Mr Trump agreed China is the country with the greatest leverage over North Korea and with that leverage comes the greatest responsibility.
"A change of government will not affect Australia's strong support for both nations at this unsafe and challenging time".
They welcomed China's support for United Nations sanctions and its efforts to increase pressure on North Korea, but agreed Beijing still holds substantial economic influence which should be used to bring the regime to its senses and restore stability on the Korean peninsula.
Washington, Sep 6 (PTI) US President Donald Trump discussed the latest nuclear test by North Korea this week with the British and Australian leaders as part of his outreach to global leaders, the White House said today.
Earlier Wednesday, the United States proposed a resolution at the UN that would include broad new sanctions on North Korea and freeze the assets of leader Kim Jong Un in the wake of global concern over the rogue nation's nuclear weapons tests.
On his way to Bismarck, North Dakota, where he'll participate in a tax reform event, Trump told reporters that military action against the Democratic People's Republic of Korea (DPRK) was "not a first choice, but we will see what happens". But, he indicated, other avenues for pressure would come first.
The White House said Donald Trump and Mr Turnbull "confirmed that their two countries will intensify joint efforts to denuclearise North Korea".
An All-American final four at the US Open
In the Open era, there have only been all-American semifinals five times before this year, and only twice before in NY : 1979 U.S. All of this is happening while Serena Williams is watching as a new mother, as she's been out since the Australian Open.
Earlier, the Pentagon said US Defence Secretary Jim Mattis had reassured his South Korean counterpart of the "iron-clad" US commitment to defend the American ally.
"President Trump reaffirmed his commitment to defending the homeland, territories, and allies of the United States, using all available diplomatic and military capabilities", the White House said.
The leaders also discussed terrorism in the southern Philippines.
Mr Mattis and South Korean Defense Minister Song Young-moo spoke on Tuesday, and the US Defense Department said in a statement on Wednesday that Mr Mattis made clear that any threat to the US and its allies would be met "with a massive, effective and overwhelming military response".
After posting tweets Sunday morning in response to North Korea's successful test of a highly-powerful nuclear device just before midnight Saturday night, President Donald Trump was widely mocked and criticized by nuclear and foreign policy experts.
The government also revised travel advice for Japan and Korea noting further provocations by North Korea or reactions by other countries could not be ruled out and tensions on the Korean peninsula could escalate with little warning.
Sunday afternoon, President Trump again took to Twitter, telegraphing his ideas about how he's supposedly going to handle the growing crisis.