Gargash added that his country supports the Kingdom’s efforts to overcome challenges in order to uphold the Riyadh agreement The Riyadh Agreement between the Yemeni government and the Southern Transitional Council (STC) was signed in Nov. 2019. RIYADH: The UAE supports Saudi Arabia’s efforts to implement the Riyadh agreement on Yemen, the country’s Minister of State for Foreign Affairs Anwar Gargash said on Thursday. In a tweet, Gargash added that his country supports the Kingdom’s efforts to overcome challenges in order to uphold the agreement. He called on Yemeni parties to cooperate with Saudi Arabia and create conditions that will ensure the successful implementation of the agreement. The Riyadh Agreement between the Yemeni government and the Southern Transitional Council (STC) was signed in Nov. 2019.