In a speech at Kansas State University in November, Defense Secretary Robert M. Gates noted that, “Four times in the last century the United States has come to the end of a war, concluded that the nature of man and the world had changed for the better, and turned inward, unilaterally disarming and dismantling institutions important to our national security — in the process, giving ourselves a so-called ‘peace’ dividend. Four times we chose to forget history.”
http://www.armedforcesjournal.com/2008/03/3348179