Warship's Thames exercise
The Royal Navy's largest warship, HMS Ocean, has docked in the Thames as it prepares to take part in military exercises ahead of the Olympics.
Close-up footage of HMS Ocean passing through Thames Barrier
Watch close-up footage of HMS Ocean as it passes through the Thames Barrier, ahead of a major security exercise in preparation for the London 2012 Olympic Games.
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HMS Ocean warship makes Olympics river journey
The Royal Navy's largest warship, HMS Ocean, sailed up the Thames today as the military stepped up security preparations for the Olympics.
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Missiles, war ship and jets move into place for Olympics
Details of a vast security operation to defend Britain's air, land and sea during the London Olympic Games became a little clearer today.
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Video shows 'unguarded missiles' outside London flats
A video posted online apparently shows military equipment, being used as part of Olympics security, left unguarded outside London flats.