why did the united states invade afghanistan because al qaeeda attack the united state on september 11 the president of united state George Bush anounced that american forces had launched war against the taliban in afghanistan.
Afghan War
in the history of afghanistan the internal conflict that began in 1978 between anticomunist islamic Guerellas and the afghan communist government Aided in 1979 to1989 by soveit troop leading the overthrow of the government in 1992.