Vivid footage posted on the internet shows a crowd of men casually kicking and smashing lines of neat white headstones at the main Commonwealth War Graves in Benghazi. br br Around 150 memorials were systematically overturned, many of them shattered, while a sandstone cross was smashed with sledge hammers. br br Last night relatives of British serviceman buried at the cemetery told The Daily Telegraph of their shock at the "terrible" vandalism. br br The cemetery outside the Libyan second city, the headquarters of anti-Gaddafi forces during last year’s revolution, is the final resting place of more than 1,200 soldiers and airmen who died serving under Montgomery in the war in the desert.