In a widely expected move, Russia has recently vetoed the extension of the UN Security Council (UNSC) Resolution 2585 which regulates the delivery of humanitarian aid to more than four million Syrians crammed in the northwestern enclave of Idlib. At the last moment, and after extracting a number of concessions in the negotiations with the US and other interlocutors, Russia agreed to extend the delivery mechanism one last time, but only for another six months, insisting that the aid must be…