Observers considered that failing to deal with these military activities as moves to obstruct the Riyadh Agreement is the biggest challenge facing the implementation of that agreement and threatening to give the Houthis the opportunity to complete their control over northern Yemen, while the Muslim Brotherh pushoodes to extend its influence southward. It was previously reported in the media that these moves were part of a deal struck between the Muslim Brotherhood and the Houthis which was brokered by Qatar and Turkey. Forces heading towards Aden, Abyan and Shabwa, the site of deadly clashes between government forces and the STC, are expected to return to their original positions as part of the agreement. In addition, the agreement called for the formation of a new government representing North and South Yemen, provided that the share of STCs supported by the United Arab Emirates be four portfolios in a government of 24 ministers, in exchange for the abandonment of the autonomous administration it had announced on 26 April. It was the fourth government since the war in Yemen began in March 2015. Meanwhile, several complications hinder the implementation of the Riyadh agreement, in addition to its rejection by some southern forces, in particular what was declared by the Supreme Council of the South American Movement, which rejected the agreement « as a whole » on 2 August, suggesting protests to defend the call for the separation and restoration of the southern State of Yemen. When the initial agreement was signed in November, observers feared that its vague language would complicate implementation, and these fears were quickly identified. The process stopped at the end of 2019 and until 2020, with the STC withdrawing from the enforcement committees in January. Subsequently, the Hadi government banned a delegation of STC officials from returning to Aden in March and the STC returned the favour by blocking the return of Hadi`s Prime Minister, Maeen Abdulmalik Saeed.
The STC delegation has officially informed Saudi Arabia of its intention to leave Riyadh, accusing the Yemeni government of obstructing the agreement`s implementation and delaying the formation of a new government, the Aden24 website reported. Both the local Hadi and STC parties and the international community welcomed the Riyadh agreement when it was signed last November. The agreement focused on three things: the creation of a national partnership cabinet, the change of local authorities and the change of head of security in all southern governorates to improve the situation of existence in the liberated governorates, and the restructuring of the military and security forces in the south to place all units under the roof of the Ministry of Defence or the Ministry of the Interior. Nevertheless, it is unlikely that the secessionist objectives of the STC will dissolve – indeed, the Council can hope that membership in Hadi`s government will give it sufficient legitimacy to pursue an offer of secession along the way. The STC`s official statement on the reactivated agreement confirms that the Council will not withdraw from its ultimate state objective. The leaders of the STC – who are supported in some parts of the South but are not universally attracted to the population – see secession as a long-term goal, better achieved by a political process than by a unilateral declaration. In this sense (and probably to dispel any discontent among hardline secessionists), an STC official tweeted after announcing that the re-establishment of a southern state required « patience and self-limitation. » The successive crises in southern Yemen between the legitimate government and the STC have weakened the relationship within the Saudi-UAE alliance since the Saudi-backed Yemeni government accuses the UAE of supporting and financing the STC, especially after the latter de autonomousclared administration in southern Yemen in April.