Apropos what I wrote above...
https://www.rt.com/news/322305-isis-financed-40-countries/During the summit, “I provided examples based on our data on the financing of different Islamic State (IS, formerly ISIS/ISIL) units by private individuals. This money, as we have established, comes from 40 countries and, there are some of the G20 members among them,” Putin told the journalists.
Putin also spoke of the urgent need to curb the illegal oil trade by IS.
"I’ve shown our colleagues photos taken from space and from aircraft which clearly demonstrate the scale of the illegal trade in oil and petroleum products," he said.
“The motorcade of refueling vehicles stretched for dozens of kilometers, so that from a height of 4,000 to 5,000 meters they stretch beyond the horizon," Putin added, comparing the convoy to gas and oil pipeline systems.
And Russia invites the West to join in the fight against terrorism:
Putin reiterated Russia’s readiness to support armed opposition in Syria in its efforts to fight Islamic State.
"Some armed opposition groups consider it possible to begin active operations against IS with Russia's support. And we are ready to provide such support from the air. If it happens it could become a good basis for the subsequent work on a political settlement,” he said.
“We really need support from the US, European nations, Saudi Arabia, Turkey, Iran,” the president added.
Putin also disagreed with Western criticism of Russia’s actions in Syria, where the country has been carrying out a large-scale air campaign against Islamic State and other terror groups since September 30.
“It’s really difficult to criticize us,” he said, adding that Russia has repeatedly asked its foreign partners to provide data on terrorist targets in Syria.
“They’re afraid to inform us on the territories which we shouldn’t strike, fearing that it is precisely where we’ll strike; that we are going to cheat everybody,” the president said.
“Apparently, their opinion of us is based on their own concept of human decency,” he added.
Putin told the media that Russia has already established contact with the Syrian opposition, which has asked Moscow not carry out airstrikes in the territories it controls.