Undersea warfare is heating up fast. Expanding Hammerhead production shows the Navy is taking the submarine threat seriously. With Russian and Chinese subs operating farther from home, controlling what happens below the waves is a major intelligence and security challenge. #USNavy #China #NationalSecurity https://www.navalnews.com/naval-news/2026/09/u-s-navy-expands-hammerhead-anti-submarine-mine-production-with-general-dynamics/