On 13 December 2001 a terrorist attack occurred on the Indian Parliament (during which twelve people, including the five terrorists who attacked the building, were killed) and the Jammu and Kashmir Legislative Assembly on 1 October 2001. India claimed that the attacks were carried out by two Pakistan-based terror groups fighting Indian administered Kashmir, the Lashkar-e-Taiba and Jaish-e-Mohammad, both of whom India has said are backed by Pakistan's ISI a charge that Pakistan denied. The military buildup was initiated by India in response to the twin attacks leading to the 2001–02 India–Pakistan standoff between India and Pakistan. Troops were amassed on either side of the border and along the Line of Control (LoC) in the region of Kashmir. International media reported the possibility of a nuclear war between the two countries and the implications of the potential conflict on the American-led "Global War on Terrorism" in nearby Afghanistan. Tensions de-escalated following international diplomatic mediation which resulted in the October 2002 withdrawal of Indian and Pakistani troops from the international border.