Lydia Khalil analyzes the degree to which homegrown terrorism can be considered a real threat.

Don Rassler's analysis of al-Qaeda's role in Pakistan reveals that the organization is "acting to shape Pakistan's militant environment and foster jihad against the Pakistani government."

Hassan Abbas outlines the main features--aspirations, financial needs, and worldview--of Pakistan's Punjabi Taliban network.

The Revolutionary Armed Forces of Colombia (FARC) and the National Liberation Army (ELN) are Colombia's two predominant rebel groups. While both have been depleted in recent years, they remain destabilizing forces.

"A mass slaughter of civilians will take place Tuesday at noon. And everyone knows it."

A profile of militant extremist groups in the disputed Himalayan region of Kashmir.

A profile of the Southeast Asian terror group Jemaah Islamiyah, the group allegedly responsible for the 2002 Bali bombings.

The drone war against al-Qaeda's leaders--and, increasingly, their Pakistan-based Taliban allies--has been waged with little public discussion or congressional investigation of its legality or efficacy, even though the offensive is essentially a program of assassination that kills not only militant leaders, but also civilians in a country that is, at least nominally, a close ally of the United States.

A profile of the Algerian terrorist organization, Armed Islamic Group (GIA).

A profile of the Liberation Tigers of Tamil Eelam (LTTE), a separatist terrorist group that seeks an independent state in areas in Sri Lanka inhabited by ethnic Tamils.

Sri Lanka's government has scored a string of wins in its long-standing civil war with Tamil militants. But it faces the challenge of integrating its Tamil minority.

The U.S. Central Command's communication director says countering militant messages in Afghanistan and Pakistan will require being "first with the truth" and empowering indigenous voices.

The Taliban's campaign in southern Afghanistan is receiving aid from Pakistan's military intelligence agency, Mark Mazzetti and Eric Schmitt say.

India not only faces evolving threats from Kashmiri militants, but also an increasingly violent Maoist insurgency.

A profile of ETA, a terrorist separatist group operating in the Basque regions of Spain and France.

Analysts are studying whether al-Qaeda in Iraq, severely diminished over five years of war, is moving its war against the West to Afghanistan.

Two years after the UN-brokered cease-fire between Israeli forces and Hezbollah gunmen in southern Lebanon, lasting peace remains elusive.

A profile of the Muslim separatist group based in the Xinjiang province in northwest China.

A profile of Egyptian Islamic Jihad, a militant Islamist group that is fully merged with al-Qaeda.