Last month Britain handed over command in Helmand to a US general.
Maj Gen Richard Mills, of the US Marine Corps, assumed control of all Nato-led International Security Assistance Force (Isaf) troops in Helmand on 1 June.
Dr Fox is expected to announce Britain will concentrate on Helmand's busy central belt, leaving the north and south to the US.
The BBC also understands that more British troops will be sent to Helmand to help with the redeployment.
Post je objavljen 07.07.2010. u 13:00 sati.