Those looking to take on the Army’s infamously difficult Ranger School will have to start by fixing bayonets, then run through smoke, razor wire, and machine gun bursts, hop in a trench, and stab the enemy with cold steel. In April, Ranger Class 06-26 became the first to, well, take a stab at the school’s new bayonet course, a quarter-mile event in which students crawl through tunnels, sprint over open fields, and negotiate barbed wire fence lines.