PHILADELPHIA (Dec. 14, 2023) Secretary of the Navy Carlos Del Toro meets with state and industry representatives at the NDIA Delaware Valley Chapter (NDIA-DVC) Naval Nuclear Submarine and Aircraft Carrier Suppliers’ Conference at Drexel University in Philadelphia, Dec. 14. The third annual conference focuses on supply chain challenges and opportunities in the U.S. Navy’s Virginia and Columbia class submarines, and Ford class aircraft carrier shipbuilding programs. (U.S. Navy photo by Chief Mass Communication Specialist Shannon Renfroe)