USN US Navy
The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage of its active battle fleet alone exceeding the next 13 navies combined, including 11 allies or partner nations of the U.S. as of 2009.[8][9]
It has the highest combined battle fleet tonnage[10][8] (4,635,628 tonnes as of 2023)[11] and the world's largest aircraft carrier fleet, with 12 in service, two new carriers under construction, and five other carriers planned. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the U.S. Navy is the third largest of the United States military service branches in terms of personnel. It has 299 deployable combat vessels and about 4,012 operational aircraft as of July 18, 2023.[11][12]
The United States Navy traces its origins to the Continental Navy, which was established during the American Revolutionary War and was effectively disbanded as a separate entity shortly thereafter. After suffering significant loss of goods and personnel at the hands of the Barbary pirates from Algiers, the United States Congress passed the Naval Act of 1794 for the construction of six heavy frigates, the first ships of the Navy.
The United States Navy played a major role in the American Civil War by blockading the Confederacy and seizing control of its rivers. It played the central role in the World War II defeat of Imperial Japan. The United States Navy emerged from World War II as the most powerful navy in the world. The modern United States Navy maintains a sizable global presence, deploying in strength in such areas as the Western Pacific, the Mediterranean, and the Indian Ocean. It is a blue-water navy with the ability to project force onto the littoral regions of the world, engage in forward deployments during peacetime and rapidly respond to regional crises, making it a frequent actor in American foreign and military policy.
The United States Navy is part of the Department of the Navy, alongside the United States Marine Corps, which is its coequal sister service. The Department of the Navy is headed by the civilian secretary of the Navy. The Department of the Navy is itself a military department of the Department of Defense, which is headed by the secretary of defense. The chief of naval operations (CNO) is the most senior Navy officer serving in the Department of the Navy.[13]
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History
Main article: History of the United States Navy
Origins
It follows then as certain as that night succeeds the day, that without a decisive naval force we can do nothing definitive, and with it, everything honorable and glorious.
— George Washington 15 November 1781, to Marquis de Lafayette[17]
Would to Heaven we had a navy able to reform those enemies to mankind or crush them into non-existence.
— George Washington 15 August 1786, to Marquis de Lafayette[18]
Naval power . . . is the natural defense of the United States.
— John Adams[19]
The Navy was rooted in the colonial seafaring tradition, which produced a large community of sailors, captains, and shipbuilders.[20] In the early stages of the American Revolutionary War, Massachusetts had its own Massachusetts Naval Militia. The rationale for establishing a national navy was debated in the Second Continental Congress. Supporters argued that a navy would protect shipping, defend the coast, and make it easier to seek support from foreign countries. Detractors countered that challenging the British Royal Navy, then the world's preeminent naval power, was a foolish undertaking.
Commander in Chief George Washington resolved the debate when he commissioned the ocean-going schooner USS *Hannah* to interdict British merchantmen and reported the captures to the Congress. On 13 October 1775, the Continental Congress authorized the purchase of two vessels to be armed for a cruise against British merchantmen; this resolution created the Continental Navy and is considered the first establishment of the U.S. Navy.[21]
The Continental Navy, including notably John Paul Jones, achieved mixed results; it was successful in a number of engagements and raided many British merchant vessels, but it lost twenty-four of its vessels[22] and at one point was reduced to two in active service.[23] In August 1785, after the Revolutionary War had drawn to a close, Congress had sold *Alliance*, the last ship remaining in the Continental Navy due to a lack of funds to maintain the ship or support a navy.[24][25]
In 1972, the Chief of Naval Operations, Admiral Elmo Zumwalt, authorized the Navy to celebrate its birthday on 13 October to honor the establishment of the Continental Navy in 1775.[26][21]
From re-establishment to the Civil War
See also: Union Navy
The United States was without a navy for nearly a decade, a state of affairs that exposed U.S. maritime merchant ships to a series of attacks by the Barbary pirates. The sole armed maritime presence between 1790 and the launching of the U.S. Navy's first warships in 1797 was the U.S. Revenue-Marine, the primary predecessor of the U.S. Coast Guard. Although the United States Revenue Cutter Service conducted operations against the pirates, the pirates' depredations far outstripped its abilities and Congress passed the Naval Act of 1794 that established a permanent standing navy on 27 March 1794.[27]
The Naval Act ordered the construction and manning of six frigates and, by October 1797,[22] the first three were brought into service: USS *United States*, USS *Constellation*, and USS *Constitution*. Due to his strong posture on having a strong standing Navy during this period, John Adams is "often called the father of the American Navy".[28] In 1798–99 the Navy was involved in an undeclared Quasi-War with France.[29] From 1801 to 1805, in the First Barbary War, the U.S. Navy defended U.S. ships from the Barbary pirates, blockaded the Barbary ports and executed attacks against the Barbary' fleets.
The U.S. Navy saw substantial action in the War of 1812, where it was victorious in eleven single-ship duels with the Royal Navy. It proved victorious in the Battle of Lake Erie and prevented the region from becoming a threat to American operations in the area. The result was a major victory for the U.S. Army at the Niagara Frontier of the war, and the defeat of the Native American allies of the British at the Battle of the Thames. Despite this, the U.S. Navy could not prevent the British from blockading its ports and landing troops.[30]
But after the War of 1812 ended in 1815, the U.S. Navy primarily focused its attention on protecting American shipping assets, sending squadrons to the Caribbean, the Mediterranean, where it participated in the Second Barbary War that ended piracy in the region, South America, Africa, and the Pacific.[22] From 1819 to the outbreak of the Civil War, the Africa Squadron operated to suppress the slave trade, seizing 36 slave ships, although its contribution was smaller than that of the much larger British Royal Navy. After 1840 several secretaries of the navy were southerners who advocated for strengthening southern naval defenses, expanding the fleet, and making naval technological improvements.[31]
USS *Constitution* vs HMS *Guerriere* during the War of 1812.
During the Mexican–American War the U.S. Navy blockaded Mexican ports, capturing or burning the Mexican fleet in the Gulf of California and capturing all major cities in Baja California peninsula. In 1846–1848 the Navy successfully used the Pacific Squadron under Commodore Robert F. Stockton and its marines and blue-jackets to facilitate the capture of California with large-scale land operations coordinated with the local militia organized in the California Battalion.
The Navy conducted the U.S. military's first large-scale amphibious joint operation by successfully landing 12,000 army troops with their equipment in one day at Veracruz, Mexico. When larger guns were needed to bombard Veracruz, Navy volunteers landed large guns and manned them in the successful bombardment and capture of the city. This successful landing and capture of Veracruz opened the way for the capture of Mexico City and the end of the war.[30] The U.S. Navy established itself as a player in United States foreign policy through the actions of Commodore Matthew C. Perry in Japan, which resulted in the Convention of Kanagawa in 1854.
Naval power played a significant role during the American Civil War, in which the Union had a distinct advantage over the Confederacy on the seas.[30] A Union blockade on all major ports shut down exports and the coastal trade, but blockade runners provided a thin lifeline. The Brown-water navy components of the U.S. navy control of the river systems made internal travel difficult for Confederates and easy for the Union. The war saw ironclad warships in combat for the first time at the Battle of Hampton Roads in 1862, which pitted USS *Monitor* against CSS *Virginia*.[32] For two decades after the war, however, the U.S. Navy's fleet was neglected and became technologically obsolete.[33]
20th century
The Great White Fleet demonstrating U.S. naval power in 1907; it was proof that the U.S. Navy had blue-water capability
A modernization program beginning in the 1880s when the first steel-hulled warships stimulated the American steel industry, and "the new steel navy" was born.[34] This rapid expansion of the U.S. Navy and its decisive victory over the outdated Spanish Navy in 1898 brought a new respect for American technical quality. Rapid building of at first pre-dreadnoughts, then dreadnoughts brought the U.S. in line with the navies of countries such as Britain and Germany.
In 1907, most of the Navy's battleships, with several support vessels, dubbed the Great White Fleet, were showcased in a 14-month circumnavigation of the world. Ordered by President Theodore Roosevelt, it was a mission designed to demonstrate the Navy's capability to extend to the global theater.[22] By 1911, the U.S. had begun building the super-dreadnoughts at a pace to eventually become competitive with Britain.[35] The 1911 also saw the first naval aircraft with the navy[36] which would lead to the informal establishment of United States Naval Flying Corps to protect shore bases. It was not until 1921 US naval aviation truly commenced.
World War I and interwar years
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