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Japanese aircraft carrier 'biggest since World War II'

6 August 2013 Last updated at 18:34 BST

Japan has unveiled its largest warship since World War Two.

The $1.2 billion aircraft carrier has a flight deck almost 250m long, which can reportedly carry nine helicopters.

Officials say the Izumo will be used in anti-submarine warfare and border-area surveillance missions.

Samantha Smith reports

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