A report by a British foreign policy think-tank says that international forces have failed to bring satisfactory security to Afghanistan.
The Chatham House report says that they lack a coherent strategy.
It says that Nato and US forces need a strategy which integrates the fight against Taleban insurgents with reconstruction efforts.
It also highlights Pakistan as a significant arms source and recruitment base for the insurgents.
The report says that as long as Pakistan remains a safe haven for the Taleban and al-Qaeda, international forces will not be able to control Afghanistan.