Sea-Air-Space 2017 Photo Gallery

Seapower Highlights from April 4

Vice Adm. David Johnson, principal military deputy assistant secretary of the Navy for Research Development and Acquisition, speaks during "The Future of Nuclear Deterrence" panel April 4. At his right is Vice Adm. Chas A. Richard, deputy commander, U.S. Strategic Command, and at his left is Iain King, counsellor, Defense Policy and Nuclear, British Embassy. (Seapower photo by Lisa Nipp)