<sod >The sculpture was unveiled by Mr Humphrey and Serena Alexander, whose son Marine Sam Alexander MC, died on Afghanistan in 2011.Â  Three months after the centenary of the warâs beginning, there is no sign â yet â of the British public suffering from commemoration fatigue.< eod>< sod > The sculpture was unveiled by Mr Humphrey and Serena Alexander, whose marine son Sam Alexander MC, died in Afghanistan in 2011.< eod>