Syrian opposition groups have agreed to take part in the next round of peace talks in Geneva, the office of UN special envoy Staffan de Mistura confirmed on Tuesday.
It will be the first time both government and opposition representatives have been present at the talks, which are designed to find a political solution to a civil war that has raged for six years and claimed around 400,000 lives.
A climate of mutual distrust had meant that each side had previously spoken separately with de Mistura.
The opposition groups' assent means talks will begin as planned on Thursday. Up for discussion will be the creation of a nationally unified government, a new constitution, elections and anti-terrorism measures.