David Cameron has issued a direct appeal to the Taliban to enter peaceful talks on the future of Afghanistan after hosting talks at Chequers with Afghan President Hamid Karzai and Pakistani President Asif Ali Zardari today.
The Prime Minister said the two leaders had agreed "an unprecedented level of co-operation".
He said they had agreed to sign up to a strategic partnership between their two countries in the autumn.
At the same time, they also agreed to the opening of an office in the Qatari capital Doha for negotiations between the Taliban and the Afghan High Peace Council.
Mr Cameron said the agreement should send a clear message to the Taliban.
"Now is the time for everyone to participate in a peaceful, political process in Afghanistan."
"This should lead to a future where all Afghans can participate peacefully in that country's political process."