A US Army (USA) CH-47 Chinook helicopter offloads Coalition Forces Soldiers at a landing zone 7,500-feet above sea level in the Tora Bora region in Afghanistan during Operation Torii. Operation Torii is a Coalition operation consisting of over 400 members from the US Military, Royal Canadian Army (RCA), and the Afghanistan Military Forces (AMF), whos mission is to gather intelligence, exploit, and deny entrance to four underground sites, while looking for Osama Bin Laden