U.S. soldiers use purple smoke to mark a mined area while conducting breach training as part of exercise Saber Junction 15 on the Grafenwoehr Training Area in Germany, April 13, 2015. U.S. soldiers use purple smoke to mark a mined area while conducting breach training as part of exercise Saber Junction 15 on the Grafenwoehr Training Area in Germany, April 13, 2015. SHARE: Download: Full Size (2.59 MB) Tags: photo essays Credit: VIRIN: 110642-P-EQT17-061.jpg Photo Gallery