"This report provides material on the latest crisis in Yemen and the U.S. policy response. For further background and analysis on Yemen, see CRS [Congressional Research Service] Report RL34170, 'Yemen: Background and U.S. Relations', by Jeremy M. Sharp. Yemen's internationally backed transition government, which replaced the regime of former President Ali Abdullah Saleh in 2012, has collapsed. In its place is an alliance comprised of the Houthi movement and loyalists of former president Saleh. Current President Abdu Rabbo Mansour Hadi is now in exile in Saudi Arabia, which launched a major military operation against the Houthi/Saleh alliance on March 25; the stated goal of this operation is to restore President Hadi to power. To date, after more than two months of fighting that has resulted in as many as 1,400 Yemeni casualties and 500,000 displaced persons, Saudi Arabia and its coalition partners continue to conduct military operations against Houthi fighters and their allies. From a military standpoint, the Saudi-led coalition has conducted numerous air strikes in support of tribal allies and Hadi loyalists on the ground and blockaded Yemen's coastline and closed Yemen's airspace in order to prevent Iran from resupplying the Houthis."
CRS Report for Congress, R43960