Murder? or Foreign Policy? In his book "The World America Made" Robert Kagan (aka Mr. Victoria Nuland) argues that peace requires an empire. He starts off using the example of the Roman Empire ringing in an era of world peace. His vision now is of a Pax Americana of world peace. Obama buys into this argument so much that he praised Kagan's book in his 2012 State of The Union address to Congress.