AMMAN/BEIRUT – The United Nations invited Syria’s government and opposition to peace talks in Geneva on Friday, but it remained unclear whether Saudi-backed opponents of President Bashar al-Assad would overcome their objections to attending.

The U.N. Special Envoy for Syria, Staffan de Mistura, sent out invitations to the delayed talks on Tuesday, without saying who had been invited or how many groups might participate.
Earlier, the opposition cast doubt on whether it would go to Geneva, accusing the United States of adopting unacceptable Iranian and Russian ideas for solving the conflict.
Opposition official Asaad al-Zoubi told Arabic news channel Al-Hadath that he was pessimistic, though the final decision would be taken at an opposition meeting in Riyadh on Tuesday.

The Geneva talks are expected to last for months, with diplomats shuttling between rival delegations in separate rooms.

The Syrian government, which is clawing back territory from the rebels with the help of Russian air strikes and Iranian ground forces, has already said it will attend.
The opposition comprising the recently formed High Negotiations Committee (HNC) has however repeatedly said the government and its allies must halt bombardments and lift blockades of besieged areas before it will join talks.

The U.S. Special Envoy for Syria, Michael Ratney, urged the opposition to attend the talks.
“Our advice to the Syrian opposition is to take advantage of this opportunity to put the intentions of the regime to the test and to expose in front of international public opinion which are the parties serious in reaching a political settlement in Syria and which are not,” he said.

A Western diplomat said the aim was to get the talks started without further delay. “There is a little bit of fear that if the talks don’t start soon they’ll never really get going.”