170118-N-SL853-071 GREAT LAKES, Ill. (Jan. 18, 2017) Recruits from Divisions 055 and 056 participate in the confidence chamber at Recruit Training Command during Fire Fighter Class II. Recruits attend a week of firefighting training to gain basic knowledge, understanding and confidence in the Navy's firefighting equipment. About 30,000-40,000 recruits graduate annually from the Navy's only boot camp. (U.S. Navy photo by Chief Petty Officer Seth Schaeffer/Released)