Former German President Horst Köhler dies at 81

Horst Koehler, Personal Envoy of the Secretary General of the United Nations to the parties to the conflict in Western Sahara, arrives for a round table on Western Sahara at the European headquarters of the United Nations in Geneva, Switzerland, Wednesday, Dec. 05, 2018.

Köhler, a onetime head of the International Monetary Fund who became a popular German president before resigning abruptly in a flap over comments about the country's military, has died at 81.

(Image credit: Martial Trezzini)