agreement, iran has come out to have a louder voice in the negotiations, but the reality is all the efforts over the last couple of years have not born fruit. we've seen nearly 5 million syrians leaving the country. this has also reached the soil of the europeans as well. and more than 220,000 people killed in combat in syria. the president of iran is calling for a new formula. he told our christian amanpour, it's time to bring all the parties together. let's taken a listen. >> everyone has accepted that president asaad must remain so that we can combat the terrorists. however, as soon as this movement reaches the various levels of success and starts driving out terrorists on a step by step basis, then other plans must be put into action. so as to hear the voices of the opposition as well.