US President Barack Obama (C), Belgium's King Philippe (R) and Belgian Prime Minister Elio Di Rupo (L) visit the WWI Flanders Field Cemetery in Waregem on March 26, 2014. The cemetery is the final resting place for 368 Americans, most of whom were killed during World War I. AFP PHOTO / SAUL LOEB        (Photo credit should read SAUL LOEB/AFP via Getty Images)