CAIRO ? Sudan peace efforts resumed in Cairo on Wednesday with Egypt and the United Nations calling on warring parties to agree to a nationwide humanitarian truce, as the war between the army and its rival paramilitary nears the three-year mark. Egyptian Foreign Minister Badr Abdelatty told reporters that Egypt wouldn?t accept the collapse of Sudan or its institutions, or any attempt to undermine its unity or divide its territory, describing such scenarios as ?red lines.? Abdelatty said during a joint news conference with Ramtane Lamamra, the U.N. secretary?general?s personal envoy for Sudan, that Egypt won?t stand idly and won?t hesitate to take the necessary measures to help preserve...