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Ukraine crisis: British troops arrive in Estonia

2 May 2014 Last updated at 19:17 BST

Britain has joined with other NATO countries to provide extra security for Latvia, Estonia and Lithuania - all in response to the crisis in Ukraine.

The Baltic states, all close to Russia, have no fighter-aircraft and have for years been dependent on the alliance for protection.

Four RAF Typhoon fighters are part of a NATO force of 20 jets now guarding the Baltics.

A total of 100 British troops arrived in Estonia for a training exercise with that country's defence forces, along with the Defence Secretary Philip Hammond.

Jonathan Beale travelled with them.