beirut syrian president bashar al-assad negotiate team set arrive geneva sunday participate peace talk syria state news agency sana report thursday quote foreign ministry source delegation lead bashar al-ja afari walk last week return damascus negotiations resume wednesday without syrian government delegation talk begin last week days little apparent progress u.n. mediator staffan de mistura say government delegation return damascus consult refresh government delegation blame departure opposition uncompromising stance assad future last month opposition draw statement meet riyadh reject future role assad syria last week sessions de mistura shuttle representatives two war side meet face-to-face plan continue round dec. 15. opposition negotiate team arrive u.n. offices geneva wednesday morning resume talk de mistura france accuse syrian government wednesday obstruct peace talk refusal return geneva call russia shrink responsibilities get damascus negotiate table syrian govt delegation return geneva sunday peace talk sana