I think most Americans believe that although it's better not to use military force if you can avoid it, that the world simply doesn't provide us the luxury of giving away military force as an important tool of foreign policy.

More recently his book The World America Made has been publicly endorsed by US President Barack Obama and its theme was referenced in his 2012 State of the Union Address. Robert Kagan (born September 26 1958 in Athens Greece) is an American historian author and foreign policy commentator at the Brookings Institution.