GREAT LAKES, Ill. (Jan. 7, 2021) A recruit designated as 'Boats' delivers a message over the 1MC during an applied training exercise inside the USS Marlinspike Seamanship Trainer at Recruit Training Command. More than 40,000 recruits train annually at the Navy's only boot camp. (U.S. Navy photo by Seaman Apprentice Michael Cintron)