Czech Republic marks anniversary of the 1968 invasion by Warsaw Pact troops

Ceremonies took place throughout the Czech Republic on Sunday to mark the anniversary of the 1968 invasion of Czechoslovakia by Warsaw Pact troops. The invasion 37 years ago marked an end to the democratisation process that came to be known as the Prague Spring. Czech President Vaclav Klaus spent part of the day in Brno, where he spoke at the opening of an exhibition of historic photographs and documents from the period.