Recruit Zachary Janke, Platoon 2143, Company G. 2nd Recruit Training Battalion shimmies his way to the top of two poles during the 12-Stall exercise of the Crucible at Marine Corps Base Camp Pendleton, Calif., Nov. 23. The poles were placed there by the recruits to span across simulated water to a wooden wall in the middle. Once they made it to the middle the recruits had to use the poles to get to the other side.