Yes, Butler University has a ROTC program. ROTC stands for Reserve Officers' Training Corps. This program is designed for students who wish to gain military experience while attending college. There are 3 types of ROTC programs: Army ROTC, Navy and Marine Corps ROTC, and Air Force ROTC. Students interested in joining the ROTC program at their college are committing to serving a number of years (depending on the program) after graduating.
Learn what is ROTC in college here.