The German Chancellor Angela Merkel has arrived at Downing Street for talks with the Prime Minister ahead of negotiations on a potential rise in the EU Budget.
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The Queen has paid tribute to both her husband and son in her opening speech at this year's Commonwealth summit.
French President Francois Hollande today led a memorial service to the 130 victims of the Paris attacks in the city.
Cameron announces Commonwealth nations intention to set up specialist unit to target extremist "scourge" fuelling international terrorism.