The final leader of the Soviet Union, Mikhail Gorbachev - a pivotal figure in ending the Cold War - has died aged 91 after a long illness. Joining Worldwatch is Otago University associate professor Jim Headley.
The final leader of the Soviet Union, Mikhail Gorbachev - a pivotal figure in ending the Cold War - has died aged 91 after a long illness. Joining Worldwatch is Otago University associate professor Jim Headley.