Thomas Modly, US Navy under secretary, discusses how the service needs to think differently to prepare for great-power competition, the rationale behind his proposed clean-sheet education review, driving efficiency and more during a wide-ranging, April 11, 2018, interview with Defense & Aerospace Report Editor Vago Muradian. The interview was conducted at the Navy League’s 2018 Sea-Air-Space Symposium, held April 9-11, 2018, outside of Washington. Our coverage is sponsored by Fincantieri Marine Group, Huntington Ingalls Industries and Leonardo DRS.