GREAT LAKES, Ill. (July 19, 2021) Naval Reserve Officers Training Corps (NROTC) New Student Indoctrination (NSI) midshipman candidates participate in swimming qualifications inside the USS Indianapolis (CG 35) Combat Training Pool at Recruit Training Command (RTC), July 19, 2021. Upon completion of NSI, the candidates will start their freshman year of the NROTC program at colleges and universities nationwide this fall. (U.S. Navy photo by Mass Communication Specialist 1st Class Amber Weingart)