The Service of Commemoration is underway in Alrewas to pay tribute to the soldiers who died in action in 2011.
Wreaths will shortly be laid at the Wall of Memorial.
The service is being led by Bishop John Kirkham, former Bishop to the Armed Forces.350 people are attending the annual event at the National Memorial Arboretum in Staffordshire.
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His family are extremely worried as they say this is really out of character for Aaron who has never been missing before.
Very mild but often cloudy and damp.
Mostly dry but rather cloudy overnight. Turning windy Monday morning.