Grenade Toss Army Col. David Martinez, commander, New York Army National Guard’s 369th Sustainment Brigade, prepares to throw a training grenade during premobilization training at Fort Indiantown Gap, Pa., Aug. 16, 2016. Army National Guard photo by Sgt. Cesar Leon SHARE: Download: Full Size (0.85 MB) Tags: guard, soldiers, army, training Credit: Sgt. Cesar Leon VIRIN: 160816-Z-FU374-028A.JPG Photo Gallery