UN Secretary-Generalrsquo;s Special Envoy for Sudan, Ramtane Lamamra, called on all warring rivals on Friday to seize a proposal for a humanitarian truce in the country, describing it as a ldquo;rare chancerdquo; to stop the fighting and protect Sudanese civilians. On Sept. 12, the Quad, which comprises the US, Egypt, Saudi Arabia and the UAE, called for a three-month humanitarian truce in Sudan to enable the delivery of...