With US-Russia tensions reaching a new peak over the Syrian crisis and Moscow's decision to give asylum to US intelligence leaker Edward Snowden, Putin's foreign policy advisor Yury Ushakov appeared compelled to note that Obama will be treated just like any other leader.
"Putin will naturally greet Obama among other leaders, shake his hand and then we will see," Ushakov told reporters ahead of the Group of 20 summit Russia hosts next week in Saint Petersburg.
With US strikes on Syria possibly just days ahead of the summit, any encounter between Putin and Obama in Saint Petersburg is expected to be especially awkward.
At the briefing, Ushakov reeled off a long list of the summit's participants with whom Putin planned to meet for either full-blown or brief meetings on the sidelines of the summit. But Obama was not among them.
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"A meeting with Obama is not planned," he said, admitting that the two men will still have a chance to speak to each other at the summit.
With the Syrian crisis at the forefront of the world agenda, many expect the highly polarising issue of mooted military action against Syria to highjack the G20 agenda.
Ushakov said today any US military strikes bypassing the UN Security Council "will inflict huge damage to the system based on the central role of the UN."
"They will deal a serious blow to the entire system of world order," he said.
He added that Russia did not want to see a situation where "one or a group of states brings charges (against someone), passes judgement and then executes their own sentence."
A bilateral meeting between the two leaders in Saint-Petersburg was not scheduled "because we and the Americans planned a full-scale state visit (by Obama) to Moscow, which, as you know, is not happening," Ushakov said.