Ethiopian and Somali troops have captured the strategic Somali city of Baidoa from al-Qaeda-linked al-Shabab  fighters, who vowed to avenge the loss. Baidoa, 250km northeast of the capital Mogadishu, is one of the main bases of the anti-government group, and Wednesday’s capture deals a major blow to the fighters, who control large parts of southern and central Somalia. “We have taken...