United Nations Security Council Resolution 1590, adopted unanimously on 24 March 2005, after recalling resolutions 1547 (2004), 1556 (2004), 1564 (2004), 1574 (2004), 1585 (2005) and 1588 (2005) on the situation in Sudan, the Council established the United Nations Mission in Sudan (UNMIS) for an initial period of six months. The passage of the resolution created the United Nations' 17th active peacekeeping mission. The vote on the resolution primarily concerning South Sudan was delayed by three weeks due to disagreements over the situation in nearby Darfur.