Sixteen families lost loved ones serving with 40 Commando in Afghanistan. But the unit was by no means the only one to be affected by the conflict.
Families from across our region lost sons, brothers and fathers, who were serving in military units based across the South West.
Ahead of today's parade our Somerset Correspondent David Woodland spoke to Judy Gaden, the mother of Corporal Tom Gaden, who was killed in Afghanistan four years ago:
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A teenage boy is also in hospital. Police believe both had suffered adverse reactions to an unknown substance.
Sunshine all day tomorrow and warm week ahead
Lovely and warm with highs of 23 and 24 degrees. Hottest on Wednesday.