High Quality Content by WIKIPEDIA articles! The United States acknowledges holding 108 Yemeni captives in Guantanamo. By January 2008 the Yemenis in Guantanamo represented the largest group of captives. On March 12, 2008 Mark Falkoff of the Center for Constitutional Rights issued a call for the repatriation of the Yemeni captives, reporting that 95 Yemenis remained in detention, and they now constituted more than a third of the captive population. Falkoff wrote that the delay in his release is due to a failure of the USA and Yemeni governments to reach an agreement on the security arrangements for the captives, following their repatriation. By contrast, almost all the 133 Saudi captives in Guantanamo had been sent home in 2006 and 2007. A delegation of Yemeni officials visited Guantanamo shortly after it opened in January 2002.