AFGHANISTAN. Winter 2010. Kunar Province. Group photo after shooting practice at Forward Operating Base (FOB) Bostick. The most northern of US military bases and the most active area for insurgent attacks is seldom visited by journalists. Its 3rd Batallion, 61st Cavalry regiment which lost 8 soldiers last year at the nearby Observation Post (OP) Keating. Now closed. The Swat Valley of Pakistan is directly across the mountains.