When it comes to setting national priorities, determining threats, defining challenges, and fashioning and implementing foreign and defense policies, the United States and Europe have parted ways.

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.