Complex sentence: The Battle of Britain Roll of Honour is paraded through the Abbey; originally it was escorted by 12 Battle of Britain veterans, today the escort is made up of six veterans and six serving Junior Officers in the RAF.
Split into simpler sentences: The Battle of Britain Roll of Honour is paraded through the abbey. Originally, it was escorted by 12 Battle of Britain veterans; today, the escort is made up of six veterans and six serving Junior Officers in the RAF.