The war in Yemen is not a war that we wanted. We had no other option - there was a radical militia allied with Iran and Hezbollah that took over the country. It was in possession of heavy weapons, ballistic missiles and even an air force. Should we stand by idly while this happens at our doorstep, in one of the countries in which al-Qaida has a huge presence? So we responded, as part of a coalition, at the request of the legitimate government of Yemen, and we stepped in to support them.

Other than our disagreement over Syria, I would say our relationship with Russia is very good and we are seeking to broaden and deepen it. Twenty million Russians are Muslims. Like Russia, we have an interest in fighting radicalism and extremism. We both have an interest in stable energy markets. Even the disagreement over Syria is more of a tactical one than a strategic one. We both want a unified Syria that is stable in which all Syrians enjoy equal rights.

Show me one Iranian diplomat we killed! I can show you many Saudi diplomats who were killed by Iran.

Iran is the only country around the negotiating table that has not been attacked by either al-Qaida or Daesh.

There is nothing to encourage. The Iranians should just stay away from us.

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.

The Middle East has gone through periods of turmoil before. In the 1950s and 1960s, there were revolutions. When monarchies were collapsing in a number of countries, we had radicals and we had Nasserism. Today it's a little bit more complicated.