(FILES) In this file photo taken on March 07, 2018 A US flag is pictured on a soldier's uniform during the 'Dynamic Front 18' exercise in Grafenwoehr, near Eschenbach, southern Germany. - The US Army said on September 7, 2018 that it would deploy an additional 1,500 troops in Germany, despite President Donald Trump's repeated complaints that the NATO partner is spending too little on joint defence. (Photo by CHRISTOF STACHE / AFP)