© Licensed to London News Pictures. 03/05/2012. LONDON, UK. A Rapier surface to air missile system (SAM) belonging to Sphinx Battery, 16 Regiment Royal Artillery, is seen on Blackheath in London today (03/0512). The missiles have been deployed as part of an exercise involving the RAF, British Army and Royal Navy taking place across London as part of security preparations for the 2012 London Olympic Games. Photo credit: Matt Cetti-Roberts/LNP
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