The US became the world's strongest nation by being the last power to enter wars- not by weakening itself by endless wars.
YES and NO.
In Pakistan, the drones should have taken out a lot of Pakistani supporters of the Taliban.
And the ground troops should be pulled out which Obama will largely do (he’s announced his intention) in the next two years.
He’ll leave a tripwire force just like we have in South Korea right now most likely.
Afghanistan will end up just another no-win war stalemate in the post-World War II tradition of Republicans and Democrats.