The Arab world's poorest country is now the battleground of a Mideast-wide war

Saudi Arabia's navy evacuated dozens of diplomats from Yemen on Saturday and the United Nations pulled out international staff after a third night of Saudi-led air strikes trying to stem advances by Iranian-allied Houthi fighters. Residents reported heavy clashes between the Houthis and mainly Sunni tribal fighters in the south of the country, while the air campaign sought to stall a fresh offensive by the Shi'ite Muslim group on Aden from the east. Riyadh's intervention, a surprise move ...