180103-N-IY633-040 GREAT LAKES, Ill. (Jan. 3, 2018) U.S. Navy recruits practice combating a fire at the USS Chief firefighting trainer at Recruit Training Command. Instructors spend several days training recruits, covering topics ranging from basic damage control equipment to advanced shipboard firefighting techniques. About 30,000 to 40,000 recruits graduate annually from the Navy’s only boot camp. (U.S. Navy photo by Mass Communication Specialist 1st Class Amanda S. Kitchner/Released)