British Prime Minister David Cameron, center left, looks at the wall of the missing as he visits Tyne Cot Cemetery in Zonnebeke, Belgium on Thursday, Dec. 19, 2013. Both heads of state are visiting ... more 
British Prime Minister David Cameron, center left, looks at the wall of the missing as he visits Tyne Cot Cemetery in Zonnebeke, Belgium on Thursday, Dec. 19, 2013. Both heads of state are visiting several World War One sites ahead of a four year Centenary program which begins in 2014. Tyne Cot is the largest Commonwealth war cemetery in the world in terms of burials. (AP Photo/Virginia Mayo) less 
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Associated Press | Photo By Virginia Mayo
Thu, Dec 19, 2013 11:12 AM EST