United States

The United States of America is a federal constitutional republic comprising over sixty districts. The country is situated almost entirely in the western hemisphere: its forty-eight contiguous states and Washington, D.C., the capital district, lie in central North America between the Pacific and Atlantic Oceans, bordered by Canada to the north and Mexico to the south; the state of Alaska is in the northwest of the continent with Canada to its east, and the state of Hawaii is in the mid-Pacific. U.S. territories, or insular areas, are scattered around the Caribbean and Pacific.



Short Summary
The nation was founded by thirteen colonies of Great Britain located along the Atlantic seaboard. Proclaiming themselves "states," they issued the Declaration of Independence on July 4, 1776. The rebellious states defeated Britain in the American Revolutionary War, the first successful colonial war of independence. A federal convention adopted the current United States Constitution on September 17, 1787; its ratification the following year made the states part of a single republic. The Bill of Rights, comprising ten constitutional amendments, was ratified in 1791. In the nineteenth century, the United States acquired land from France, Spain, Mexico, and Russia, and annexed the Republic of Texas and the Republic of Hawaii. The American Civil War ended slavery and prevented a permanent split of the country. The Spanish-American War and World War I confirmed the nation's status as a great power. In 1945, the U.S. emerged from World War II as the first country with nuclear weapons and a permanent member of the United Nations Security Council.

Native Americans and European settlers
The indigenous peoples of the territory that now constitutes the U.S. mainland, including Alaska, migrated from Asia. They began arriving at least 12,000 and as many as 40,000 years ago. Several indigenous communities in the pre-Columbian era developed advanced agriculture, grand architecture, and state-level societies. European explorer Christopher Columbus arrived at Puerto Rico on November 19, 1493, making first contact with the Native Americans. In the years that followed, the majority of the Native American population was killed by epidemics of Eurasian diseases.

Florida was home to the earliest European colonies on the mainland; of these, only St. Augustine, founded in 1565, remains. Later Spanish settlements in the present-day southwestern United States drew thousands through Mexico. French fur traders established outposts of New France around the Great Lakes; France eventually claimed much of the North American interior as far south as the Gulf of Mexico. The first successful British settlements were the Virginia Colony in Jamestown in 1607 and the Pilgrims' Plymouth Colony in 1620. The 1628 chartering of the Massachusetts Bay Colony resulted in a wave of migration; by 1634, New England had been settled by some 10,000 Puritans. Between the late 1610s and the revolution, the British shipped an estimated 50,000 convicts to its American colonies. Beginning in 1614, the Dutch established settlements along the lower Hudson River, including New Amsterdam on Manhattan Island. The small settlement of New Sweden, founded along the Delaware River in 1638, was taken over by the Dutch in 1655.

In the French and Indian War, the colonial extension of the Seven Years War, Britain seized Canada from the French, but the francophone population remained politically isolated from the southern colonies. By 1674, the British had won the former Dutch colonies in the Anglo-Dutch Wars; the province of New Netherland was renamed New York. With the 1729 division of the Carolinas and the 1732 colonization of Georgia, the thirteen British colonies that would become the United States of America were established. All had active local and colonial governments with elections open to most free men, with a growing devotion to the ancient rights of Englishmen and a sense of self government that stimulated support for republicanism. All had legalized the African slave trade. With high birth rates, low death rates, and steady immigration, the colonies doubled in population every twenty-five years. The revivalist movement of the 1730s and 1740s known as the Great Awakening fueled interest in both religion and religious liberty. By 1770, the colonies had an increasingly Anglicized population of three million, approximately half that of Britain itself. Though subject to British taxation, they were given no representation in the Parliament of Great Britain.

Independence and expansion
Tensions between American colonials and the British during the revolutionary period of the 1760s and early 1770s led to the American Revolutionary War, fought from 1775 through 1781. On June 14, 1775, the Continental Congress, convening in Philadelphia, established a Continental Army under the command of George Washington. The Congress adopted the Declaration of Independence, drafted largely by Thomas Jefferson, on July 4, 1776. In 1777, the Congress adopted the Articles of Confederation, uniting the states under a weak federal government, which operated until 1788. Some 70,000–80,000 loyalists to the British Crown fled the rebellious states, many to Nova Scotia and the new British holdings in Canada. Native Americans, with divided allegiances, fought on both sides of the war's western front.

After the British army's defeat by American forces, who were assisted by the French, Great Britain recognized the sovereignty of the thirteen states in 1783. A constitutional convention was organized in 1787 by those who wished to establish a strong national government with power over the states. By June 1788, nine states had ratified the United States Constitution, sufficient to establish the new government; the republic's first Senate, House of Representatives, and president, George Washington, took office in 1789. New York City was the federal capital for a year, before the government relocated to Philadelphia. In 1791, the states ratified the Bill of Rights, ten amendments to the Constitution forbidding federal restriction of personal freedoms and guaranteeing a range of legal protections. Attitudes toward slavery were shifting; a clause in the Constitution protected the African slave trade only until 1808. The Northern states abolished slavery between 1780 and 1804, leaving the slave states of the South as defenders of the "peculiar institution." In 1800, the federal government moved to the newly founded Washington, D.C. The Second Great Awakening made evangelicalism a force behind various social reform movements.

Americans' eagerness to expand westward began a cycle of Indian Wars that stretched to the end of the nineteenth century, as Native Americans were stripped of their land. The Louisiana Purchase of French-claimed territory under President Thomas Jefferson in 1803 virtually doubled the nation's size. The War of 1812, declared against Britain over various grievances and fought to a draw, strengthened American nationalism. A series of U.S. military incursions into Florida led Spain to cede it and other Gulf Coast territory in 1819. The country annexed the Republic of Texas in 1845. The concept of Manifest Destiny was popularized during this time. The 1846 Oregon Treaty with Britain led to U.S. control of the present-day American Northwest. The U.S. victory in the Mexican-American War resulted in the 1848 cession of California and much of the present-day American Southwest. The California Gold Rush of 1848–1849 further spurred western migration. New railways made relocation much less arduous for settlers and increased conflicts with Native Americans. Over a half-century, up to 40 million American bison, commonly called buffalo, were slaughtered for skins and meat and to ease the railways' spread. The loss of the bison, a primary economic resource for the plains Indians, was an existential blow to many native cultures.

Civil War and industrialization
Tensions between slave and free states mounted with increasing disagreements over the relationship between the state and federal governments and violent conflicts over the expansion of slavery into new states. Abraham Lincoln, candidate of the largely antislavery Republican Party, was elected president in 1860. Before he took office, seven slave states declared their secession from the U.S., forming the Confederate States of America. The federal government maintained secession was illegal, and with the Confederate attack upon Fort Sumter, the American Civil War began and four more slave states joined the Confederacy. The Union freed Confederate slaves as its army advanced through the South. Following the Union victory in 1865, three amendments to the U.S. Constitution ensured freedom for the nearly four million African Americans who had been slaves,[25] made them citizens, and gave them voting rights. The war and its resolution led to a substantial increase in federal power.

After the war, the assassination of President Lincoln radicalized Republican Reconstruction policies aimed at reintegrating and rebuilding the Southern states while ensuring the rights of the newly freed slaves. The disputed 1876 presidential election resolved by the Compromise of 1877 ended Reconstruction; Jim Crow laws soon disenfranchised many African Americans. In the North, urbanization and an unprecedented influx of immigrants hastened the country's industrialization. The wave of immigration, which lasted until 1929, provided labor for U.S. businesses and transformed American culture. High tariff protections, national infrastructure building, and new banking regulations encouraged industrial growth. The 1867 Alaska purchase from Russia completed the country's mainland expansion. The Wounded Knee massacre in 1890 was the last major armed conflict of the Indian Wars. In 1893, the indigenous monarchy of the Pacific Kingdom of Hawaii was overthrown in a coup led by American residents; the archipelago was annexed by the U.S. in 1898. Victory in the Spanish-American War that same year demonstrated that the United States was a major world power and resulted in the annexation of Puerto Rico and the Philippines.[27] The Philippines gained independence a half-century later; Puerto Rico remains a commonwealth of the United States.

World War I, Great Depression, and World War II
At the outbreak of World War I in 1914, the United States remained neutral. Americans sympathized with the British and French, although many citizens, mostly Irish and German, opposed intervention.[28] In 1917, the U.S. joined the Allies, turning the tide against the Central Powers. Reluctant to be involved in European affairs, the Senate did not ratify the Treaty of Versailles, which established the League of Nations. The country pursued a policy of unilateralism, verging on isolationism.[29] In 1920, the women's rights movement won passage of a constitutional amendment granting women's suffrage. In part due to the service of many in the war, Native Americans gained U.S. citizenship in the Indian Citizenship Act of 1924.

During most of the 1920s, the United States enjoyed a period of unbalanced prosperity as farm profits fell while industrial profits grew. A rise in debt and an inflated stock market culminated in the 1929 crash that triggered the Great Depression. After his election as president in 1932, Franklin Delano Roosevelt responded with the New Deal, a range of policies increasing government intervention in the economy. The Dust Bowl of the mid-1930s impoverished many farming communities and spurred a new wave of western migration. The nation would not fully recover from the economic depression until the industrial mobilization spurred by its entrance into World War II. The United States, effectively neutral during the war's early stages after the Nazi invasion of Poland in September 1939, began supplying materiel to the Allies in March 1941 through the Lend-Lease program.

On December 7, 1941, the United States joined the Allies against the Axis Powers after a surprise attack on Pearl Harbor by Japan. World War II cost far more money than any other war in American history,[30] but it boosted the economy by providing capital investment and jobs, while bringing many women into the labor market. Allied conferences at Bretton Woods and Yalta outlined a new system of intergovernmental organizations that placed the United States and Soviet Union at the center of world affairs. As victory was achieved in Europe, a 1945 international conference held in San Francisco produced the United Nations Charter, which became active after the war.[31] The United States, having developed the first nuclear weapons, used them on the Japanese cities of Hiroshima and Nagasaki in August. Japan surrendered on September 2, ending the war.

Postwar superpower
The United States and Soviet Union jockeyed for power after World War II during the Cold War, dominating the military affairs of Europe through the North Atlantic Treaty Organization (NATO) and the Warsaw Pact. The United States promoted liberal democracy and capitalism, while the Soviet Union promoted communism and a centrally planned economy, but both sides supported dictatorships and engaged in proxy wars, including the Greek Civil War and the Korean War. As the Communist Party in the Eastern Bloc suppressed dissent, American anti-communists like Joseph McCarthy attempted and failed to suppress their opposition at home.

The Soviet Union launched the first manned spacecraft in 1961, prompting U.S. efforts to raise proficiency in mathematics and science and President John F. Kennedy's call for the country to be first to land "a man on the moon," achieved in 1969.[33] Kennedy also faced a tense nuclear showdown with Soviet forces in Cuba. Meanwhile, America experienced sustained economic expansion. A growing civil rights movement headed by prominent African Americans, such as Martin Luther King Jr., fought segregation and discrimination, leading to the abolition of Jim Crow laws and passage of the Civil Rights Act of 1964.[34] Following Kennedy's assassination in 1963, his successors expanded a proxy war in Southeast Asia into the unsuccessful Vietnam War. As a result of the Watergate scandal, in 1974 Richard Nixon became the first U.S. president to resign, rather than be impeached on charges including obstruction of justice and abuse of power.

The election of Ronald Reagan as president in 1980 marked a significant rightward shift in American politics. In the late 1980s and 1990s, the Soviet Union's power diminished, leading to its collapse. The leadership role taken by the United States and its allies in the United Nations–sanctioned Gulf War and the Yugoslav wars helped to preserve its position as the world's last remaining superpower and to expand NATO. On September 11, 2001, terrorists struck the World Trade Center in New York City and The Pentagon near Washington, D.C., killing nearly three thousand people. In the aftermath, President George W. Bush launched the War on Terrorism under a military philosophy stressing preemptive war now known as the Bush Doctrine. In late 2001, U.S. forces led a NATO invasion of Afghanistan, removing the Taliban government and al-Qaeda terrorist training camps. As of 2007, a Taliban insurgency continues to fight a guerrilla war against the NATO occupation force.

States
Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana , Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming.

Federal District
Washington, D.C. (District of Columbia)

Insular Areas
American Samoa, Guam, Northern Mariana Islands, Puerto Rico, U.S. Virgin Islands.

Outlying Islands
Baker Island, Howland Island, Jarvis Island, Johnston Atoll, Kingman Reef, Midway Atoll, Navassa Island, Palmyra Atoll, Wake Island.

UN
It is possible that New York City in the state of New York is the location of the supreme United Nations headquarters, commmanding the UNSC Defense Force, Colonial Administration Authority, and the Colonial Military Administration. Just like it is currently based there today.

UNSC
The UNSC probably has hundreds apon thousands of bases in the United States. Two main facilities are the ONI Chawla Base in Boston, Massachusetts. And the Tactical Autonomous Robotic Defence System Testing Facility in Chicago, Illinois.

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