For many Afghans, U.S. Army Gen. Stanley A. McChrystal's dismissal over intemperate remarks in a magazine profile has served mainly to underscore their own weariness with a conflict that has dragged on for nearly nine years with no end in sight.For some, the general's woes have sharpened fears that the Western campaign against the Taliban movement — which ruled the country for five long, harsh years — is floundering. And many Afghans think that the Americans, like the Soviet Union two decades ago and so many would-be conquerors, ultimately will fail.McChrystal won the respect, even affection, of many Afghans with...