To what extent would Assad, who is seen as war criminal in the West, agree to such direct talks?

Kristin Helberg: The Assad regime has been taking part in negotiations since 2012. In this respect, Merkel hasn't really said anything new. Negotiations with the Assad regime have been taking place on a regular basis. Staffan de Mistura, the United Nations Special Envoy for Syria, travels to Damascus on a regular basis to hold talks. So there is no question about seeking a political resolution supported by the federal government of Germany. This is not really something new. There should be no misunderstanding about Assad being accepted as a partner, for example, against the "Islamic State", or as a partner in talks about refugees. That is not what Merkel said and I don't think it is what she intends to do.

Why has the dialogue not got us anywhere until now?

If you speak to the representatives who took part in talks in Geneva and Montreux, they often say that the Syrian regime has torpedoed all progress because Assad himself and his people have no reason to talk about a change of power as they still have enough international support - mainly from Iran and the Lebanese Hezbollah, who fight on Assad's side. Moreover, Russia has been holding its protective hand over Syria in the UN Security Council. No matter how weak Assad is in the country itself, the support has not led him to make any compromises.

Merkel's statements give the impression that Assad could contribute to a resolution. How much authority does he have in his country?

Kristin Helberg

Bashar al Assad is militarily very weak in his country. He is only able to hold his territory - the center of Damascus and the coastal region – with the massive support of Iran, Hezbollah and Russia. That means he actually cannot offer much in the way of an alliance in the battle against IS. Moscow would like to forge such an alliance but that would be a mistake, because Assad has not been fighting IS; on the contrary, he has been fighting on the IS side against all the other groups, and mainly moderate rebel groups. The international alliance needs ground troops. But who is fighting on the ground against IS? Not Assad's forces - they would probably run away from IS. The Syrian army has disintegrated.

Is the idea of speaking with Assad a completely wrong approach?

Someone must speak to Assad about handing over power. Assad must understand that this country will not stabilize. He can no longer control the situation and no one in Syria wants IS. We need a third option, an alternative to Assad. That is why he must be integrated in the conflict resolution process and regime representatives are needed at the table.

But turning to Damascus to solve the IS problem is a completely wrong approach. Assad's bombs gave life to the IS in Syria. People have been radicalized and ultimately, view the IS as a protector of Sunnis. Assad's air strikes on cities, like Aleppo, or the targeted infrastructure attacks, were fatal. His assaults killed seven times more civilians than IS has.

That is the main problem, which has caused the flow of refugees and the strengthening of IS. We need a political transition to combat IS. In order for Syrians to unite in the fight against IS and for an alternative to Bashar al Assad, they can no longer be bombed from the air. Protection zones for civilians and no-fly zones must be created.

What must be done to find an answer?

Parallel to diplomatic efforts, on which especially German Foreign Minister Steinmeier has been banking, we need military pressure. As long as Assad feels safe and has no reason to relinquish power, he will not change anything. No-fly zones would be a measure to force him to the negotiating table. We'd have to convince Russian President Putin to agree.

A Syrian army gunner targets Islamist forces in Sabadani

Strategically, it would be better to negotiate with Russia, not about a Putin plan, but instead about an alternative to Assad, in order to take action together against IS.

Opposition groups in Syria have a roadmap for a transitional period and for a change of power in Syria. A transitional government without representatives of the Assad regime is the goal, but the opposition will only negotiate a real transfer of power.

The German chancellor named Assad as one of the many players involved. In your opinion, how many players must absolutely take part in the talks?

All players involved in the conflict must sit at the table. They are definitely Iran, which is running Assad's struggle for survival in the country; Russia; and other regional powers such as Saudi Arabia and especially Turkey, which has been strongly affected by this conflict. The most difficult one will be Iran. It is interested in maintaining the lifeline of the Lebanese Hezbollah. That's why they need Assad. No one in the opposition is willing to fulfil this interest. It would probably be easier to satisfy Russia's interest in preserving power in the region.

Is there a risk of Russians disrupting the talks?

Any statement made by a Western politician showing a willingness to talk pleases Putin because he thinks that his calculations will pay off in the end, meaning it will keep his allies - and his protégé Bashar al Assad - in power. But I believe that Russia is gathering facts for the period after Assad in Syria. Whoever comes to power there must reckon with Russia because the military cooperation is simply so great that there is no way around Russia.

Between 2001 and 2008, Kristin Helberg worked in Syria, reporting on the Arab and Islamic world. For much of that time, she was the only officially accredited Western correspondent. The Middle East expert's reports and analyses in radio, television and print media are known for their detailed information and nuanced insights.