Queen's speech speaks of a more sombre Christmas this year

"Christmas is a time for celebration. But this year it is a more sombre occasion for many," the 82-year-old monarch will say.

"Some of those things which could once have been taken for granted suddenly seem less certain and, naturally, give rise to feelings of insecurity."

"People are touched by events which have their roots far across the world," she will say. "Whether it is the global economy or violence in a distant land, the effects can be keenly felt at home."