Syria blame game continues after failed Geneva talks NEWS / SYRIA'S CIVIL WAR  READ MORE Syrian children suffer in camps, no relief in sight Middle East Syria's Civil War, The UN-backed conference aims to end Syria's war by bringing together the Syrian government and the opposition [Erik De Castro/Reuters] The United States has urged the Syrian government to "participate fully" in negotiations with the opposition, while a Syrian official blamed opposition preconditions for yet another failed round of talks in Geneva . Referring to the negotiations, which ended in the Swiss city on Thursday without any results, the US state department commended the Syrian opposition's "constructive participation", which it said stood in contrast to the "obstructionism and procrastination" of the government delegation. "We support [UN Special Envoy for Syria Staffan] de Mistura's call for the regime's supporters to use their leverage to urge the regime to participate fully in tangible negotiations with the opposition in Geneva," state department spokesperson Heather Nauert said on Friday. This was the eighth round of Syria peace talks in Geneva. The UN-backed international conference on the future of Syria aims to end the war by bringing together the Syrian government and the opposition to discuss steps towards a transitional government. We commend @UNGeneva Special Envoy for Syria and his team for their efforts in latest round of #Syria talks. The United States urges all parties to work seriously toward political resolution to this conflict or face continued isolation and instability indefinitely in #Syria . 9:58 PM - Dec 15, 2017 15 56 100 Heather Nauert @statedeptspox De Mistura criticised the Syrian government for having preconditions for direct talks with the opposition delegation and only discussing the issue of what Damascus called "terrorism". Describing the failed talks as a "missed golden opportunity", De Mistura said that he was disappointed with the results but that he was planning yet another round of talks in Geneva in January. 'Honest and objective' Syria strongly condemned De Mistura's remarks, alluding to the 70-year-old Italian-Swedish diplomat's perceived bias in the talks. Syrian state news agency SANA quoted an unnamed official at Syria's foreign ministry late on Friday who said that Syria had "always dealt in a positive manner with all honest efforts to resolve the [country's] crisis". The source said that De Mistura "must be honest and objective in order to reach results that would put an end to the crisis" and that he must work to remove obstacles placed by "states and sides that control other parties in Geneva talks". The Syrian government's chief negotiator, Bashar al-Jaafari, said that his side would not engage in any dialogue with the opposition unless they retracted a recent statement issued in Saudi Arabia, which again insisted on the departure of President Bashar al-Assad.