US Army, STAFF Sergeant (SSG) John Santos, of D Company, 1ST Battalion, 41st Infantry , 3rd Brigade, 1ST Armored Division, unrolls concertina wire which will be attached to a pole and used as a crowd deterrent, while his platoon conducts a compliance checkpoint along Route Camel, near Karakaj, in the Republic of Serbska (Republika of Srpska), Bosnia and Herzegovina. Operation JOINT GUARD, 28 August 1997