Australia has warned Russian President Vladimir Putin against crossing into Ukraine under the guise of a ''humanitarian mission'', with Foreign Minister Julie Bishop saying further sanctions could involve bans on the sale of uranium.
As Prime Minister Tony Abbott labelled Russia a bully and warned Moscow not to interfere in Ukraine's internal affairs, Ms Bishop said Australia had found a new status in world affairs, had proved itself capable of shifting global opinions, and of influencing events in the national interest.
Mr Abbott said he had been reluctant to escalate criticism of Russia or raise the prospect of sanctions while unarmed Australian police were within 30 kilometres of the Russian border.
But with the Dutch-led team of investigators - who have spent the past week at the MH17 crash site collecting the remains of victims - now on their way back to the Netherlands, it was now appropriate to speak out, the Prime Minister said.
''If there is any movement by Russian forces across the border, it won't be a humanitarian mission, it will be an invasion,'' he said.
''And I say to President Putin that if he wants to be regarded as a world leader, as opposed to becoming an international outcast, hold your forces back. Stay behind the border, let the business of Ukraine be sorted out by Ukrainians.''
In an exclusive interview with Fairfax Media ahead of her departure to Myanmar for the East Asia Summit Foreign Ministers' Meeting, Ms Bishop said the government was considering ''broader, deeper sanctions'' against Moscow.
She said there was ''no excuse or justification for Russia to intervene in Ukraine'' and if ''Russia does seek to intervene in Ukraine, there would be consequences''.
The Foreign Minister said that sanctions to date had only been imposed on Russian individuals and companies, but Australia could consider ''other options''.
When asked if that might include the possibility of banning the sale of uranium to Russia, Ms Bishop responded ''everything's on the table''.
She said Russia could avoid further sanctions from Australia but it would depend on its actions at the United Nations and whether Moscow was prepared to accept responsibility for the deaths of 298 people, 38 of whom called Australia home. But she said she had seen no evidence of contrition or sorrow from Russian officials to date.
Ms Bishop said she was determined to see justice served for victims because ''their grief demands answers''.
Australia's response to MH17 has been lauded both at home and abroad. Ms Bishop said she had been told by other countries that ''only Australia'' could have achieved what it did over MH17.
''We were able to obtain a unanimous UNSC resolution within three days and we were able to obtain a significant legal framework to enter Ukraine and take over the crash site in the middle of a war zone,'' she said.
When asked about Mr Abbott's infamous comment a week before his election as prime minister, that Australia ''should not get ideas above its station'', Ms Bishop said she believed that Australia had found a ''new station'' in the wake of its international efforts in response to MH17.
''I believe Australia has demonstrated it can shift opinions and influence events where our national interests lie,'' she said.
The downing of the civilian plane had ''galvanised'' EU and American opinion on Russia and she said she was satisfied with their sanctions to date.
''Until this point there had been a reluctance to press Russia for its behaviour particularly over Crimea,'' she said.
Russia announced its own retaliatory sanctions on Australia and other Western nations this week, which include banning foodstuffs, including meat, fruit and vegetables.
Ms Bishop played down their impact on the Australian economy and said it was more ''petulance'' from Russia and another evasion of accepting responsibility for the downing of MH17.
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