After the revolution of 1979, Iran embarked on a policy of sectarianism. Iran began a policy of expanding its revolution, of interfering with the affairs of its neighbors, a policy of assassinating diplomats and of attacking embassies. Iran is responsible for a number of terrorist attacks in the Kingdom, it is responsible for smuggling explosives and drugs into Saudi Arabia. And Iran is responsible for setting up sectarian militias in Iraq, Pakistan, Afghanistan and Yemen, whose objective is to destabilize those countries.

We warned when the crisis began in 2011 that unless it was resolved quickly, the country [Syria] would be destroyed. Unfortunately, our warnings are coming true.

The Iranians know what they need to do in order to become a responsible member of the international community and in order to become a good neighbor, and it's really up to them to change their behavior.

Should the political process not work, there is always the other approach.

We expressed our readiness to join the US-led, international coalition against Daesh with special forces. All of this, however, is still in the discussion phase and in the initial planning phase.

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.

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