U.S. general sets two-year goal for driving back Afghan Taliban

By Phil Stewart and Idrees AliWASHINGTON (Reuters) - The top U.S. general in Afghanistan said on Monday he believes he could help Afghan forces drive back the Taliban enough to control at least 80 percent of the country within two years, compared with about two-thirds today.General John Nicholson, citing counter-insurgency doctrine, said gaining 80 percent control of the country would represent a turning point in the 16-year-old conflict, which has become thelongest U.S war."This we believe is t