General John Allen briefed reporters on U.S. operations in Afghanistan and the investigation into the alleged killing of 17 Afghans by Staff Sergeant. Robert Bales. In his comments General Allen said the military is looking into the command climate in Sergeant Bales' unit to determine if it could have been a contributing factor. With regard to the transition, he said that following the withdrawal of all surge troops, a review will be conducted to determine future force levels.