Grenade Toss Army 1st Lt. Taylor Johnson throws a simulated grenade as part of expert infantry, soldier and field medical qualifications training at Fort Polk, La., Aug. 11, 2026. The training tests soldiers attempting to earn either the Expert Infantryman Badge, the Expert Soldier Badge or the Expert Field Medical Badge. SHARE: Download: Full Size (1.55 MB) Tags: army, training Credit: Army Spc. Isaiah Mount VIRIN: 260811-A-ND131-9491.JPG Photo Gallery