Boulle also examines friendship between individual soldiers, both among captors and captives. Resistance captives and suspects were often tortured and raped. It was reported that many of the captives became slaves. At the bottom were war captives and slaves obligated to labor, especially in farming. There were no priests among the captives. Most of the other Mohave captives escaped. They are believed to have been war captives, or the descendants of war captives. The interrogations of two of the captives were videotaped. They also did a brisk business in ransoming some of the captives. However, there were no priests among the captives. But some African kings refused to sell any of their captives or criminals. Delhi was captured and sacked by Timur in 1398, who massacred 100,000 captives. Each of such plundering raids on Iran was accompanied by capture of great many captives. War broke out when Romulus refused to return the captives. Hoekstra called for a halt to the repatriation of Yemeni captives in Guantanamo.