The probe will address a host of questions surrounding the crash, including the decision to send the Chinook "packed with Navy and Air Force special operations forces" to the firefight to assist troops on the ground.
The helicopter was apparently shot down by an insurgent armed with a rocket-propelled grenade. It was the single deadliest loss in the decade-long war.
Gen James Mattis, head of US Central Command, has appointed US Army Brig Gen Jeffrey Colt to spearhead the investigation. Colt is deputy commander of the 101st Airborne Division.



