During a trip to Afghanistan on Armed Forces Day, David Cameron said it was an opportunity to say "how proud we are of our armed forces and everything they do for us".
He also said funding from Libor rate-rigging fines would be put into military charities and a permanent memorial would be built at the National Memorial Arboretum in Staffordshire.
In terms of the political aims of the country, he said: "We want a political solution as well as making sure we have a security solution.
Mr Cameron added that it was important that the politics "enable everyone in Afghanistan to play a role in the future of their country".
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