Soldiers test on the Nuclear Biological Contamination four report a skill level 2 warrior task at Fort Chaffee, Ark., on April 3, 2011. Soldiers from the 10th Psyop Bn., St. Louis, Mo., are conducting a Best Warrior Competition for the 7th POB which will produce two winners, one non-commissioned officer and one junior enlisted whom will then move on to the next round to compete against other winners at Fort Bragg, N.C., in May.