Stanley Pace, who served in the Korean War, tells ITV News Central he is "honoured" to attend the ceremony at the National Memorial Arboretum in Staffordshire.
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The 23-year-old suspect was held as he tried to board a ferry in Dover overnight.
Any early mist and fog will soon clear, with unbroken sunshine for most. With light winds, it will be another very warm day.
Dry and often sunny with mist, low cloud and fog largely clearing back to coasts through the morning.