Increased Support for More Troops in Afghanistan

I just don't get this. After all this time there is still an appetite for more war? Via Taegan-

Gallup: "Americans over the last two weeks have become slightly more likely to favor sending more U.S. troops to Afghanistan, and slightly less likely to favor a reduction in forces. At this point, 47% of Americans would advise President Obama to increase the number of U.S. troops -- either by the roughly 40,000 recommended by the commanding general in Afghanistan or by a smaller amount -- while 39% would advise Obama to reduce the number of troops."