180410-N-EX237-058 NATIONAL HARBOR, Md. (April 10, 2018) Rear Adm. Peter J. Clarke, director, strategy, capabilities, policy and logistics for U.S. Transportation Command, addresses attendees at the Strategic Sealift panel during the 2018 Sea-Air-Space Exposition. The annual event hosted by the Navy League of the United States and brings together the U.S. defense industrial base, private-sector U.S. companies, and key military decision makers for an innovative, educational, and professional maritime based event. (U.S. Navy photo by Mass Communication Specialist 2nd Class Lauren K. Jennings/Released)