If only our proud nation's Commander in Chief and his minions had picked up a copy of The Art of War, wisdom from a man that lived 500 years B.C. (or B.C.E. if you're so inclined), before setting off to war on foreign soil.
Just two pages in, Chapter 1, Line 2-3:
"When you engage in actual fighting, if victory is long in coming, the men's weapons will grow dull and their ardour will be damped. If you lay siege to a town, you will exhaust your strength.
Again, if the campaign is protracted, the resources of the State will not be equal to the strain."