The Consolidated PBY Catalina was not the fastest aircraft of World War II, but it became one of the most valuable. Designed for endurance rather than speed, it excelled at maritime patrol, ...

Almost nobody knows where they are at any given time, yet nuclear-armed ballistic missile submarines quietly patrol dark domains of the undersea realm in strategically vital waters around the globe, ...

China's submarine fleet is improving, making advancements in stealth. In a war, China's subs could put up a tough fight in the First Island Chain, analysts say. China has also prioritized sensors and ...

In the midst of the Falklands War, British sailors hunting for ARA San Luis launched ordnance at the sonar and radar signals of whales, wrecks, and even flocks of seagulls — anything that might have ...