A low-intensity war pitting Afghanistan’s democratically elected government, which is backed by international troops, against militants from the Taliban and al-Qa‘ida.

A struggle between the Spanish government and ETA, a terrorist group, over the issue of Basque independence.

A war over whether or not Chechnya is part of the Russian Federation.

A fight involving left-wing guerrillas, right-wing paramilitaries, and the Colombian government.

A campaign of violence by government-backed militias against groups of rebels and their supporters.

A brutal insurgency with elements of a low-intensity civil war.

A longstanding disagreement between India and Pakistan over the status of a mountainous Himalayan region.

An ongoing conflict between North and South Korea, turned into a crisis by North Korea’s pursuit of nuclear weapons.

A struggle between those who want Northern Ireland to rejoin Ireland and those who want it to stay in the United Kingdom.

A fight between the Israelis and the Palestinians over sovereignty of the Gaza Strip and the West Bank.