But Western governments have other worries as well . Houthi rebels depose Yemen 's government in surprise attack in January . The United States and Saudi Arabia have been at odds over the conflict since March 2011 when Shiite rebel forces seized Sanaa after a popular uprising against President Ali Abdullah Saleh.
Houthi rebels depose Yemen 's government in surprise attack in January . The United States and Saudi Arabia have been at odds over the conflict since March 2011 when Shiite rebel forces seized Sanaa after a popular uprising against President Ali Abdullah Saleh.