How civil wars evolve
When the Taliban took control of Kabul, Afghanistan, in late 1996, they soon launched a sustained military offensive to the north, an area they did not control. The following May, however, Abdul Malik Pahlawan, an Uzbek leader of the so-called Northern Alliance, which had been defending the region, struck a power-sharing agreement with the Taliban — who marched right into Mazar-i-Sharif, a key northern city.All of two days later, Malik changed his mind, recognizing that his group would not have as much power as he had hoped. Quickly joining forces with two other ethnic groups in the area, Malik and his Uzbek followers repelled the Taliban in a bloody battle, eventually regaining control of the northern provinces.This episode contains a larger lesson: Contrary to the common perception, political alliances during civil wars are not formed along immutable religious, ethnic or linguistic lines, according to the research of MIT political scientist...