Economy depends on Policy of a country, though whatever it is. Barak Obama recent policy on Afghanistan (while admitting spedning trillion of $ on this so called war on terror). Unemployment is already on rise, global economy is not stable as yet. The 'IMPACT' of this policy would be on US and Global Economy, "long-lasting" in two ways "Positive or Negative" stress would be later. US tax payers and investors were very keen to see somthing different from this indifferent announced policy. I don't want to go into pros and cons of policy. However, it is common presumption that it is based on confusion(divided between peace & war lovers) and would not be as good as American people.