150311-N-AT895-159 WASHINGTON, (March 11, 2015) Chief of Naval Operations (CNO) Adm. Jonathan Greenert delivers remarks at the National Defense University strategic leadership forum. Greenert spoke about the Chairman of the Joint Chiefs of Staff's desired leader attributes with a focus on recognizing change and leading transitions. (U.S. Navy photo by Mass Communication Specialist 1st Class Nathan Laird/Released)