FILE - In this June 3, 2010 file photo, Afghan Army soldiers arrive to join a mission with Canadian soldier with the 1st Battalion, in Khebari Ghar in the Panjwayi district, south-west of Kandahar, ... more 
FILE - In this June 3, 2010 file photo, Afghan Army soldiers arrive to join a mission with Canadian soldier with the 1st Battalion, in Khebari Ghar in the Panjwayi district, south-west of Kandahar, Afghanistan. Gunmen, including one believed to be an Afghan soldier, killed two NATO troops Thursday, March 1, 2012 in southern Afghanistan, just hours after the top NATO commander in the country allowed some foreign advisers to return to work at government ministries. (AP Photo/Anja Niedringhaus, File) less 
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Associated Press | Photo By Anja Niedringhaus, File
Thu, Mar 1, 2012 9:44 AM EST