Dhaka, Feb. 2 -- Horst Koehler, former German president from 2004 to 2010 and a respected global policymaker with a particular interest in Africa, died on Saturday after a short illness at the age of 81, the federal presidential office said in a statement.Born in 1943 in German-occupied Poland, Koehler spent most of his early years living in refugee camps with his family before settling in Ludwigsburg, Baden-Wuerttemberg.A trained economist and member of the Christian Democrats, Koehler rose to the position of deputy finance minister under ex-Chancellor Helmut Kohl, playing a key role in bringing the West German mark to East Germany after communist rule collapsed in 1990.Koehler became managing director of the International Monetary Fund ...