I am giving the reference of the book written in America by David E. Sanger :
CONFRONT AND CONCEAL: Obama's secret wars and suprising use of American power.
According to author there are three basic objectives of Obama in Pakistan
1) To destabilise the nuclear programme of Pakistan
2)Control of Taliban in Afghanistan
3) To target the hideouts or lairs of Al qaida in Pakistan...
What do you people think is it possible in long run?