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".
More top news
It will be largely dry with some good sunny spells breaking through across many parts today
Hayley Cowan was sentenced to four months and banned from keeping animals for life after killing Staffordshire Bull Terrier Beau.
The High Court has ruled the prison segregation of two terrorists was unlawful although it rejected claims their human rights were abused.