151117-N-PO203-358 WASHINGTON (Nov. 17, 2015) Rear Adm. Mat Winter, chief of naval research, provides opening remarks during the Office of Naval Research 75th anniversary commemoration of the Tizard Mission held at the Canadian Embassy in Washington, D.C. In 1940, Sir Henry Tizard and a small British delegation brought with them to the United States and Canada plans for more than 20 technologies, most importantly the cavity magnetron, which made possible radars that were both small and powerful. (U.S. Navy photo by John F. Williams/Released)