The most dangerous corner of Africa is its north-eastern Horn where instability reigns and terrorism thrives on the antagonisms of all it governments. The Horn of Africa comprising Ethiopia, Sudan and now South Sudan, Somalia, Djibouti, Eritrea, and stretching to include Kenya and Uganda, is a pivotal geopolitical pressure point in world politics.It stands at the hinge of Africa and the Middle East.It was of vital interest to the superpowers during...