A full-scale battle in Idlib and the subsequent humanitarian crisis must be avoided at all cost, stated United Nations Secretary-General Antonio Guterres during a presser at the UN Headquarters in New York City on Tuesday.br br "I make a clear appeal to all parties … in particular the three guarantors of the de-escalation zone, namely Iran, Russia and Turkey: Spare no effort to find solutions that protect civilians," said Guterres who cautioned against a "a humanitarian nightmare unlike any seen in the blood-soaked Syrian conflict.