HMS Dreadnought was a revolutionary battleship launched by the Royal Navy in 1906. It was the first of its kind to feature an all-big-gun armament, meaning it carried only large-caliber guns, which significantly improved its firepower. The ship's design also included steam turbine propulsion, allowing for greater speed and efficiency compared to earlier battleships. The introduction of HMS Dreadnought marked a turning point in naval warfare, leading to a new class of battleships known as dreadnoughts. This shift rendered older battleships, often referred to as pre-dreadnoughts, obsolete, as navies around the world raced to build similar vessels to maintain their naval dominance.