160503-N-AT895-432 NEW YORK (May 3, 2016) Chief of Naval Operations (CNO) Adm. John Richardson delivers remarks during a moderated discussion with fellow service chiefs at the Council on Foreign Relations (CFR). Richardson, Commandant of the Marine Corps Gen. Robert B. Neller, Army Chief of Staff Gen. Mark A. Milley, Air Force Chief of Staff Gen. Mark A. Welsh III and Coast Guard Commandant Adm. Paul Zukunft discussed challenges facing the U.S. Department of Defense (DOD). The Robert B. McKeon Endowed Series on Military Strategy and Leadership features prominent individuals from the military and intelligence communities. (U.S. Navy photo by Mass Communication Specialist 1st Class Nathan Laird/Released)