The Russian president, who is set to arrive in Australian city Brisbane for the G20 summit, has sent three ships to the city's coast. The ships include a heavily armed cruiser and destroyer.
Abbott described the appearance of the four Russian vessels as "part of a regrettable pattern" of growing Russian military bullishness. Cameron, while speaking to the Australian parliament, warned Russia of further sanctions if it did not commit to resolving the conflict in Ukraine.
Cameron also described Russia actions "unacceptable"."It is a large state bullying a smaller state in Europe. We've seen the consequences of that in the past and we should learn the lessons of history and make sure we don't let it happen again," he said, said the AFP report.
Also, Russia on Friday warned France of 'serious' consequences unless the country this month delivers a warship. The warship hasn't been handed over so far due to the Ukraine crisis.
Russia's 'bully' image among Western countries grew stronger after the Malaysia Airlines incident in which pro-Russian separatists shot down a Malaysian flight in eastern Ukraine in July, killing 298 passengers and crew including 38 Australians.