There is a political process which we are trying to achieve through what is called the Vienna Group. That involves the establishment of a governing council, which is to take power away from Bashar Assad, to write a constitution and to open the way for elections. It is important that Bashar leaves in the beginning, not at the end of the process. This will make the transition happen with less death and destruction.

I don't think anyone can predict what the short term will look like. In the long term, it will be a Syria without Bashar Assad. The longer it takes, the worse it will get.

We support any deal that denies Iran nuclear weapons, that has a continuous and robust inspection mechanism and that has snap-back provisions in case Iran violates the agreement. Our concern is that Iran will use the income it receives as a result of the lifting of the nuclear sanctions in order to fund its nefarious activities in the region.

As long as Iran's aggressive policies continue, it's going to be bad for the region. Iran has to decide whether it wants a revolution or a nation-state.

Is Russia worried that defeating Daesh will open the door for defeating Bashar Assad? That would be a different story. But I don't think World War III is going to happen in Syria.

Let's not forget: This all began when you had eight- and nine-year-old children writing graffiti on walls. Their parents were told: "You will never see them again. If you want to have children, go to your wife and make new ones." [Bashar] Assad's people rebelled. He crushed them brutally. But his military could not protect him. So he asked the Iranians to come in and help.

What we want is stability and security so we can focus on our own development. But we have these problems in our region, and nobody has been able to resolve them. The whole world was saying that the countries of the regions should step up and resolve their problems, so we stepped up.