MARATHON SOLDIERS Soldiers run along a stretch of Heartbreak Hill during the Boston Marathon in Newton, Mass., April 20, 2015. The soldiers are assigned to the Massachusetts National Guard. While nearly 500 soldiers and airmen were activated to support the marathon, others opted to participate in the race. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 348265-Q-VSJ36-311.jpg Photo Gallery