Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. US Envoy to South Sudan: Implement Peace Deal or Face Sanctions Waakhe Simon Wudu JUBA - The U.S. ambassador to South Sudan, Thomas Hushek, said the U.S. stands ready to impose more sanctions if President Salva Kiir's administration does not implement the deal to end South Sudan's civil conflict. Hushek, speaking to reporters in Juba Tuesday, urged South Sudan's leaders to focus on carrying out the September 2018 peace agreement and warned that U.S. sanctions may be strengthened if that does not happen. Hushek seemed to bristle at Kiir's recent statement in which he said a unity government would be formed by a November deadline "with or without" opposition leader Riek Machar. .