A CH-47 " Chinook" drops off members of a coalition force into the Tora Bora region of Afghanistan, in support of Operation Torii on May 4, 2002. 
 
Operation Torii is a coalition operation consisting of over 400 members from the United States, Canadian Army, and the Afghanistan Military Forces (AMF) to gather intelligence. They also exploited and denied entrance to four underground sites in the Tora Bora region. The area was bombed December 2001, with 2000 pound GPS guided bombs called Joint Direct Attack Munitions (JDAM) in support of Operation Enduring Freedom.