R.O.T.C.

In the 1960s, during demonstrations against the Vietnam War, there was no single constituency that felt attacked as an ethnicity, said Timothy Naftali, who teaches public policy at Columbia, though he acknowledged that student soldiers or those in the R.O.T.C. would have been targeted.

In that case, high-ranking officers and civilian leaders of the military argued in an amicus brief that the military could not achieve an officer corps that was highly qualified and racially diverse without using limited race-conscious recruiting and admissions policies in both the service academies and R.O.T.C.

Peter Deverin, a 20-year-old R.O.T.C. cadet, helped scoop mud and mangled tree limbs off Main Street on Monday with a friend, John Venino, also 20.

R.O.T.C. is active in high schools and has its own dormitory floor at the University of Guam.

The student, who had made threats to himself and others, was also barred from practicing shooting skills with the Junior R.O.T.C. at the school, which he had joined.