Army Pfc. Juan Carlos Rivera adjusts the deflection and elevation of a round for a 120mm illumination mortar system during a night training mission on Camp Santiago Joint Maneuver Training Center in Salinas, Puerto Rico, July 14, 2013. Rivera, an infantryman, is assigned to the Puerto Rico National Guard's Headquarters Company, 1st Battalion, 296th Infantry Regiment, 101st Troop Command. Army Pfc. Juan Carlos Rivera adjusts the deflection and elevation of a round for a 120mm illumination mortar system during a night training mission on Camp Santiago Joint Maneuver Training Center in Salinas, Puerto Rico, July 14, 2013. Rivera, an infantryman, is assigned to the Puerto Rico National Guard's Headquarters Company, 1st Battalion, 296th Infantry Regiment, 101st Troop Command. SHARE: Download: Full Size (1.2 MB) Tags: Photo Essays Credit: VIRIN: 979652-J-TQB63-911.jpg Photo Gallery