"The President emphasised that the United States will not proceed with the next steps in the arrangement with Russia until we see seven continuous days of reduced violence and sustained humanitarian access," the White House said in a readout of the Situation room meeting Obama held with his national security team to review anti-Islamic State campaign.
During the meeting, which was attended by his top national security tam, Obama expressed deep concern that, despite decreased violence across the country, the Syrian regime continues to block the flow of critical humanitarian aid, the White House said.
According to the White House, Obama was briefed on multiple advances against ISIL that the Coalition has enabled across the battlefield in both Iraq and Syria.
The Iraqis have now reclaimed over 50 per cent of the territory once controlled by ISIL.
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US partners across northern Syria have essentially closed off ISIL's access to the Syrian border with Turkey and the outside world.
Earlier in the day, the White House Press Secretary Josh Earnest said there aren't a lot of good options available to the US.
"There are no other legitimate options that have been presented. And it's not as if there is an alternative that's been presented by somebody inside the administration or outside, for that matter, that anybody thinks is actually an alternative, long-term solution to this problem," he said.