From a short paper by the Washington DC based Wilson Center:
The Yemeni civil war is making for strange bedfellows. Who would have predicted that Saudi Arabia and al-Qaeda might become allies despite the terrorist group’s near success in assassinating the current Saudi crown prince six years ago? Who would have thought the Kingdom would turn to the Muslim Brotherhood for help even though the Saudis have condemned it as a terrorist group at home? But this is what is happening in Yemen as the struggle between factions, seen by rivals Saudi Arabia and Iran as proxies of each other, relentlessly grinds on with no end in sight. These Saudi alliances may be mainly tactical and of short duration, but they are straining Saudi relations with the United States, which regards al-Qaeda in the Arabian Peninsula (AQAP) as the most dangerous terrorist threat to the U.S. homeland. They are also angering Egypt’s President Abdel Fatah al-Sisi, who looks upon the Brotherhood as an existential threat and the main source of the escalating terrorist insurgency he faces.
Link:http://www.wilsoncenter.org/publicat...-allies-yemen?