Two engravers work on re-engraving the headstones of WWI soldiers at Tyne Cot cemetery in Zonnebeke, Belgium on Monday, April 15, 2013. With nearly 12,000 graves the cemetery is the largest Commonwealth war cemetery in the world in terms of burials. Commonwealth cemeteries around the world are currently being renovated in preparation for centenary events which begin in 2014. (AP Photo/Virginia Mayo)
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