US army lieutenant with a member of the Afghan national police force in Kandahar on 12/09/12
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Nato scales back operations with Afghan forces

18 September 2012 Last updated at 09:36 BST

Nato says it is to restrict operations with Afghan troops following a string of deadly attacks on its personnel by rogue Afghan security forces.

Only large operations will now be conducted jointly, with joint patrols evaluated on a case-by-case basis.

Fifty-one Nato troops have been killed by Afghan soldiers so far this year - 15 in August alone.

Richard Lister reports.