The Battle of Tora Bora was a military engagement that took place in the cave complex of Tora Bora, eastern Afghanistan, from November 30 – December 17, 2001, during the final stages of the United States invasion of Afghanistan. It was launched by the United States and its allies with the objective to capture or kill Osama bin Laden, the founder and leader of the militant organization al-Qaeda. Al-Qaeda and bin Laden were suspected of being responsible for the September 11 attacks three months prior. Tora Bora is located in the Spīn Ghar mountain range near the Khyber Pass. The U.S. stated that al-Qaeda had its headquarters there and that it was bin Laden's location at the time.

Tora Bora is a cave complex, part of the Spin Ghar mountain range of eastern Afghanistan. It is situated in the Pachir Aw Agam District of Nangarhar, approximately 50 kilometres west of the Khyber Pass and 10 km (6 mi) north of the border of the Khyber Pakhtunkhwa province in Pakistan. Tora Bora and the surrounding Spin Ghar range had natural caverns formed by streams eating into the limestone, that had later been expanded into a CIA-financed complex built for the Afghan mujahideen. Tora Bora was known to be a stronghold location of the Afghan mujahideen, used by military forces against the Soviet Union during the 1980s.