UNITED NATIONS: The United States on Wednesday threatened to oppose the renewal of a UN peacekeeping mission to Abyei, a disputed region between war-torn Sudan and South Sudan, unless both sides uphold a 2011 peace deal. At a UN Security Council meeting, the US ambassador laid down Washington’s conditions for renewing the mandate of the United Nations Interim Security Force for Abyei (UNISFA), which expires on November 15. “We recognize Sudan and South Sudan are facing historic and significant internal challenges and instability.