U.S. President Barack Obama has questioned whether Russia is prepared to make the strategic shift necessary, to join a global coaltion against ISIS.
Wrapping up a series of regional summits in Malaysia, President Obama vowed to hunt down the terrorist group.
But how far Russia and the U.S. are ready to work together towards that goal, remains unclear.
President Obama is preparing to host French President Francois Hollande in Washington on Tuesday, in the aftermath of the Paris attacks.
Mr Hollande then meets his Russian counterpart, President Vladimir Putin, in Moscow on Thursday.
President Obama has vowed to defeat ISIS, insiting it's an achievable goal.
IN: " They can't beat us...
OUT: ...happen."
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