A battleship is a large armored warship with a main battery consisting of heavy caliber guns. Battleships are larger, better armed and armored than cruisers and destroyers. After the old wooden sailing ship of the line became obsolete around 1870, battleships were the new capital ships, the largest armed ships in a fleet. They were used to take command of the sea, and represented the apex of a nation's naval power. In 1906 the new HMS Dreadnought made all older battleships obsolete.
Battleships gave support gunnery (that is: shooting targets on coast or inland) for amphibious invasions. They often served as flagships.
After World War II with the rise of bombers and guided missiles, a battleship's large guns and thick armor were less useful for fighting other ships. Battleships were no longer made, and faded from use. The United States Navy used battleships until 2004, when the last ones were made museums. Aircraft carriers and large submarines took their jobs.
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