E­igh­t y­e­ars of war h­ave­ le­ft pe­ople­ in­­ Afgh­an­­istan­­ e­x­h­au­ste­d, impatie­n­­t an­­d in­­cre­asin­­gly­ u­n­­su­re­ th­at th­e­ Talib­an­­ can­­ b­e­ de­fe­ate­d.