Since we are comparing WWII to George and Dicks excellent nation building adventure, google up pictures of Japanese and German cities circa spring 1945. That is how wars are won. Not by building schools, roads and Muslim democracies.
I have no clue; I give up. We are on the same page, probably believe the same thing. Saddam Hussein was no where near the powerful enemy Japan and Germany were. Not really much nation building with either; they were already built. They just needed to be defeated. Viet Nam wound up as a defeat (although not militarily). Isis will require at least the same effort to defeat as Saddam Hussein, if not more; then there is Iran. George W Bush refused to deal with Iran; Obama wants to build up Iran and he created the disaster in Iraq when he removed American troops (a non-military Obama caused defeat if you insist). Now the whole Middle East is in reality now a ticking time bomb. They will start terrorist activities in the United States at any moment. What is going on with terrorist activities in the Middle East was forecast by American intelligence at least in the late 80s, when I first read about their predictions.