Mauritanian author and former Guantanamo Bay detainee
Mohamedou Ould Slahi (Arabic: محمدو ولد الصلاحي; born December 21, 1970) is a Mauritanian engineer who was detained at Guantánamo Bay detention camp without charge from 2002 until his release on October 17, 2016. Slahi traveled from his home in Germany to Afghanistan in December 1990 "to support the mujahideen.": 4 Slahi trained in an al Qaeda camp and swore allegiance to the organization in March 1991. He returned to Germany soon after, but traveled back to Afghanistan for two months in early 1992. Slahi said that, after leaving Afghanistan the second time, he "severed all ties with ...
https://en.wikipedia.org/wiki/Mohamedou_Ould_Slahi