Iran's allies are gaining strength on Saudi Arabia's borders, creating the worst security environment for the kingdom in decades.
Saudi Deputy Prime Minister and Minister of Interior Mohammed bin Nayef summoned his Gulf Cooperation Council (GCC) counterparts to Riyadh over the weekend to address the rapidly deteriorating situation in Yemen, where pro-Iranian Zaydi Shiite Houthi rebels are advancing on the remnants of President Abed Rabbo Mansour Hadi's Sunni government. Abu Dhabi Crown Prince Sheikh Mohammed bin Zayid, Bahraini Crown Prince Salman bin Hamad Al Khalifah and their Qatari and Kuwaiti colleagues attended the GCC meeting and also met with King Salman bin Abdul-Aziz Al Saud in his royal palace in Diriyah outside Riyadh. The king and his visitors warned that Yemen was slipping into "a dark tunnel" with bad consequences for the entire region.