John R. Allen
John R . Allen ( born December 15 , 1953 ) is the president of the Brookings Institution , a retired United States Marine Corps four-star general , and former commander of the NATO International Security Assistance Force and U . S . 
<triplet> John R. Allen <subj> December 15, 1953 <obj> date of birth <triplet> Brookings Institution <subj> John R. Allen <obj> director / manager