the Houthis used this as a chance to take over northern Yemen. When Ali Abdullah Saleh was replaced by Abdrabbuh Mansour Hadi as president, Hadi was to take over as president for two years. The Houthis also participated in the national dialogue conference, brokered by the United Nations and the Gulf Cooperation Council to increase Hadi's term by 1 year and allow him to introduce sweeping reforms in all civilian, economic and military authorities alike. This was to purge all authorities of Saleh loyalists. But the National Dialogue conference also allowed Hadi to convert Yemen into a six-region federal system. The Houthis withheld their support from the federal region system. After Hadi's decision to increase fuel prices and remove diverse subsidies, the Houthis began an advance on all Yemeni provinces to complete the takeover of Yemen. Hajjah and Amran were the first targets followed by their siege of the Sunni-majority town of Dammaj. After problems in Egypt, Saudi Arabia was forced to declare the Moslem Brotherhood a terrorist organization and withdraw their support from the Islah party in Yemen. This allowed the Houthis to overrun the 310th armored brigade in Amran and execute its commander and replace him with a Houthi. After this, the Houthis advanced on Sanaʽa and aligned themselves with the Saleh-loyal General People's Congress (GPC). As the Yemeni special forces and republican guard were loyal to the GPC, this allowed the Houthis to overrun several of their bases in Sanaʽa. This was the first of the Houthi presence in Sanaʽa. As a result, the Yemeni Air Force (YAF) launched heavy airstrikes on columns of Houthi forces outside Sanaʽa; this caused them a large number of casualties but didn't stop their advance. The Houthis pushed on and captured the high command of the Yemeni army. Hadi panicked as the presidential compound was besieged by the Houthis. Finally, the fighting ended as the peace and partnership agreement was signed between the Houthis and Hadi. This included Hadi replacing his whole cabinet. The Houthis saw this as a chance to track down and arrest the Islah Party's allies in Sanaʽa. They also tried to impose their control over the whole Yemeni Military, but when the officers refused to obey them, they replaced them with Houthi favorites and with this, they even took over the restive Yemeni Air Force. After this, the surviving elements of the Islah party's militia, the presidential