- 5,829 viewsDuration: 1:31A network of Colombian mercenaries backed by the United Arab Emirates (UAE) provided critical support to Sudan's paramilitary Rapid Support Forces (RSF) enabling it to capture the western city of el-Fasher last year, a new report says.The investigation, by security analysis organisation the Conflict Insights Group (CIG), used data obtained from tracking the mobile phones of the Colombian fighters. The BBC’s Barbara Plett Usher breaks it down. Filmed and edited by Gloria Achieng Produced by Jelilat Olawale Subscribe: http://bit.ly/subscribetoafrica Website: https://www.bbc.com/africa Facebook: https://www.facebook.com/bbcnewsafrica/ Twitter: https://www.twitter.com/bbcafrica/ Instagram: https://www.instagram.com/bbcafrica/