British troops around the world pay tribute to WW1 soldiers
Britain's military personnel have spoken at their pride at commemorating their predecessors who fought in the First World War.
Members of the armed forces have taken part in events to mark 100 years since Britain joined the conflict, joining in services in Glasgow, Folkestone, Belgium, London and Afghanistan.
The Ministry of Defence will also take part in the Lights Out project, turning out the lights at its headquarters and at the old War Office next door ,among others.
In Portsmouth, all ships alongside at the Royal Navy Base will sound their sirens for 30 seconds exactly at 11pm to mark the moment Britain declared war on Germany.