HMS Dreadnought was a revolutionary battleship launched by the British Royal Navy in 1906. It was the first ship to feature an all-big-gun armament, which meant it carried only large-caliber guns, making it more powerful than previous battleships. Its design set a new standard for naval warfare, leading to a shift in how battleships were constructed. The introduction of HMS Dreadnought rendered older battleships obsolete and sparked a naval arms race, particularly between Britain and Germany. This ship's advanced technology and speed changed naval tactics and influenced the design of future warships, marking a significant milestone in maritime history.