Tossing a Grappling Hook A soldier tosses a grappling hook to clear a concertina wire obstacle during Joint Readiness Training Center Rotation 18-07 at Fort Polk, La., May 4, 2018. Army photo SHARE: Download: Full Size (1.22 MB) Tags: georgia army national guard, northcom, northern command, soldiers, army, training Credit: Army photo VIRIN: 180504-A-FP123-004A.JPG Photo Gallery