Vice Adm. Mel Williams Jr., commander of U.S. 2nd Fleet, speaks to Norfolk State University Naval ROTC students during a Norfolk State Black History Month program. Williams, a member of the Centennial Seven, the first seven African-American officers to serve as commanders of submarines, encouraged the students to be committed to excellence as a standard and spoke about the importance of diversity in the Navy. (U.S. Navy photo by Mass Communication Specialist 1st Class Lolita M. Lewis/Released)