Japan military 'needs marines and drones'

Japan should bolster its marine force and introduce surveillance drones, a defence review paper says, highlighting concerns over China and North Korea.

The paper also called for better defences against missile attacks and the potential to attack enemy bases.

Japan's military is constitutionally limited to a self-defence role.

But PM Shinzo Abe is looking to expand the scope of its activities - potentially a highly controversial move that would anger its neighbours.