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Thousands of troops take part in 'live fire' Nato exercise

8 November 2013 Last updated at 01:16 GMT

The BBC's Jonathan Beale reports on a Nato exercise in Poland and Latvia that involves 6,000 troops simulating a response to an attack on a member state.

It is Nato's largest live exercise since 2006 and involves land, air, naval and special forces from 20 Nato countries.

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