A Guardian feature reports that drones have become the leading cause of civilian deaths in Sudan's civil war, opening with a "double-tap" strike on 18 October that hit a transport hub near Al-Dibab's market twice, killing at least 139 people, followed days later by a strike on Nyala's market that a rights group says killed 103. The UN says drones killed at least 306 people in the first three weeks of October, and researchers and analysts tell the paper the weapons are reshaping the war, with Raymond of Yale warning Sudan's "point-and-click warfare" may define conflicts worldwide.