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Etymology
First attested in English c.1600, the word "navy" came via Old French navie, "fleet of ships", from the Latin navigium, "a vessel, a ship, bark, boat",[1] from navis, "ship" [2] and from Sanskrit "नाव" (Nau), "ship". [3] The word "naval" came from Latin navalis, "pertaining to ship";[4] cf. Greek "ναῦς" (naus), "ship",[5] "ναύτης" (nautes), "seaman, sailor"[6] (the earliest attested reference to the word is the Mycenaean Greek na-u-do-mo, "shipbuilders", written in Linear B syllabic script[7]).History
Main articles: Naval warfare and Naval history
The mass and deck space required to carry a large number of cannon made oar-based propulsion impossible and ships came to rely primarily on sails. Warships were designed to carry increasing numbers of cannon and naval tactics evolved to bring a ship's firepower to bear in a broadside, with ships-of-the-line arranged in a line of battle.
The development of large capacity, sail-powered ships carrying cannon led to a rapid expansion of European navies, especially the Spanish and Portuguese navies which dominated in the 16th and early 17th centuries, and helped propel the age of exploration and colonialism. The repulsion of the Spanish Armada (1588) by the English fleet revolutionized naval warfare by the success of a guns-only strategy and caused a major overhaul of the Spanish Navy, partly along English lines, which resulted in even greater dominance by the Spanish. From the beginning of the 17th century the Dutch cannibalized the Portuguese Empire in the East and, with the immense wealth gained, challenged Spanish hegemony at sea. From the 1620s, Dutch raiders seriously troubled Spanish shipping and, after a number of battles which went both ways, the Dutch Navy finally broke the long dominance of the Spanish Navy in the Battle of the Downs (1639).
England emerged as a major naval power in the mid-17th century in the first Anglo-Dutch war with a technical victory. Successive decisive Dutch victories in the second and third Anglo-Dutch Wars confirmed the Dutch mastery of the seas during the Dutch Golden Age, financed by the expansion of the Dutch Empire. The French Navy won some important victories near the end of the 17th century but a focus upon land forces led to the French Navy's relative neglect, which allowed the Royal Navy to emerge with an ever-growing advantage in size and quality, especially in tactics and experience, from 1695. Throughout the 18th century the Royal Navy gradually gained ascendancy over the French Navy, with victories in the War of Spanish Succession (1701–1714), inconclusive battles in the War of Austrian Succession (1740–1748), victories in the Seven Years' War (1754–1763), a partial reversal during the American War of Independence (1775–1783), and consolidation into uncontested supremacy during the 19th century from the Battle of Trafalgar in 1805. These conflicts saw the development and refinement of tactics which came to be called the line of battle.
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The first practical military submarines were developed in the late 19th century and by the end of World War I had proven to be a powerful arm of naval warfare. During World War II, the German Navy's submarine fleet of U-boats almost starved the United Kingdom into submission and inflicted tremendous losses on U.S. coastal shipping. The German battleship Tirpitz, a sister ship of the Bismarck, was almost put out of action by miniature submarines known as X-Craft. The X-Craft severely damaged her and kept her in port for some months.
A major paradigm shift in naval warfare occurred with the introduction of the aircraft carrier. First at Taranto in 1940 and then at Pearl Harbor in 1941, the carrier demonstrated its ability to strike decisively at enemy ships out of sight and range of surface vessels. The Battle of Leyte Gulf (1944) was arguably the largest naval battle in history; it was also the last battle in which battleships played a significant role. By the end of World War II, the carrier had become the dominant force of naval warfare.
World War II also saw the United States become by far the largest Naval power in the world. In the late 20th and 21 centuries, the United States Navy possessed over 70% of the world's total numbers and total tonnage of naval vessels of 1,000 tons or greater.[8] Throughout the rest of the 20th century, the United States Navy would maintain a tonnage greater than that of the next 17 largest navies combined. During the Cold War, the Soviet Navy became a significant armed force, with large numbers of large, heavily armed ballistic missile submarines and extensive use of heavy, long-ranged antisurface missiles to counter the numerous United States carrier battle groups. The Royal Navy is the only navy other than the United States Navy to be presently acquiring large supercarriers (with a gross tonnage of 70,000 tonnes or more.) - the Queen Elizabeth class ships [9], and only 3 nations (United States, France, and Brazil) presently operate CATOBAR carriers of any size. However, France's upcoming future carrier (see Future French aircraft carrier) will also be approximately the same size of 70,000 tons (and possibly even of a similar design) as the Queen Elizabeth class carriers, and the Soviet Union was building two 80,000 ton Ulyanovsk class carriers prior to its dissolution.
Operations
Navy ships can operate independently or with a group, which may be a small squadron of comparable ships, or a larger naval fleet of various specialized ships. The commander of a fleet travels in the flagship, which is usually the most powerful vessel in the group. Prior to the invention of radio, commands from the flagship were communicated by means of flags. At night signal lamps could be used for a similar purpose. Later these were replaced by the radio transmitter, or the flashing light when radio silence was needed.
A "blue water navy" is designed to operate far from the coastal waters of its home nation. These are ships capable of maintaining station for long periods of time in deep ocean, and will have a long logistical tail for their support. Many are also nuclear powered to save having to refuel. By contrast a "brown water navy" operates in the coastal periphery and along inland waterways, where larger ocean-going naval vessels can not readily enter. Regional powers may maintain a "green water navy" as a means of localized force projection. Blue water fleets may require specialized vessels, such as mine sweepers, when operating in the littoral regions along the coast.
Traditions
Main article: Naval tradition
An important tradition on board naval vessels of some nations has been the ship's bell. This was historically used to mark the passage of time, as warning devices in heavy fog, and for alarms and ceremonies.
The ship's captain, and more senior officers are "piped" aboard the ship using a Boatswain's call.
In the United States, the First Navy Jack is a flag that has the words, "Don't Tread on Me" on the flag.
By English tradition, ships have been referred to as a "she". However, it was long considered bad luck to permit women to sail on board naval vessels. To do so would invite a terrible storm that would wreck the ship. The only women that were welcomed on board were figureheads mounted on the prow of the ship.
Firing a cannon salute partially disarms the ship, so firing a cannon for no combat reason showed respect and trust. As the tradition evolved, the number of cannon fired became an indication of the rank of the official being saluted.
