US Marines during 'Platinum Eagle' military  exercise at Babadag training area, southeast Romania, on May 8, 2014. Platinum Eagle involves basic infantry tactics, advanced marksmanship, company-level command and  control familiarization, both static and squad/platoon live fires with their counterparts from Romania, Bulgaria and Armenia. AFP PHOTO DANIEL MIHAILESCU        (Photo credit should read DANIEL MIHAILESCU/AFP/Getty Images)