President of the United States in the context of Lawrence Lessig

A declaration of war is a formal act by which one state announces existing or impending war activity against another. The declaration is a performative speech act (or the public signing of a document) by an authorized party of a national government, in order to create a state of war between two or more states.

The legality of who is competent to declare war varies between nations and forms of government. In many nations, that power is given to the head of state or sovereign. In other cases, something short of a full declaration of war, such as a letter of marque or a covert operation, may authorise war-like acts by privateers or mercenaries. The official international protocol for declaring war was defined in the Hague Convention (III) of 1907 on the Opening of Hostilities.

The Perry Expedition (Japanese: 黒船来航, kurofune raikō, "Arrival of the Black Ships") was a diplomatic and military expedition in two separate voyages (1852–1853 and 1854–1855) to the Tokugawa shogunate (徳川幕府) by warships of the United States Navy. The goals of this expedition included exploration, surveying, and the establishment of diplomatic relations and negotiation of trade agreements with the various nations in the region. Opening contact with the government of Japan was considered a top priority of the expedition, and was one of the key reasons for its inception.

The expedition was commanded by Commodore Matthew Calbraith Perry, under orders from President Millard Fillmore. Perry's primary goal was to force an end to Japan's 220-year-old policy of isolation and to open Japanese ports to American trade, through the use of gunboat diplomacy if necessary. The Perry Expedition led directly to the establishment of diplomatic relations between Japan and the western Great Powers, and eventually to the collapse of the ruling Tokugawa shogunate and the restoration of the Emperor. Following the expedition, Japan's burgeoning trade routes with the world led to the cultural trend of Japonisme, in which aspects of Japanese culture influenced art in Europe and America.

The United States Department of Defense (DoD), also referred to as the Department of War (DoW), is an executive department of the U.S. federal government charged with coordinating and supervising the U.S. Armed Forces—the Army, Navy, Marines, Air Force, Space Force, and, for some purposes, the Coast Guard—and related functions and agencies. Headquartered at the Pentagon in Arlington County, Virginia, just outside Washington, D.C., the stated mission of the Department of Defense is "to provide the military forces needed to deter war and ensure our nation's security".

The Department of Defense is headed by the secretary of defense, a cabinet-level head who reports directly to the president of the United States. The president is commander-in-chief of the U.S. armed forces. Beneath the Department of Defense are three subordinate military departments: the Department of the Army, the Department of the Navy, and the Department of the Air Force. In addition, four national intelligence services are subordinate to the Department of Defense: the Defense Intelligence Agency, National Security Agency (NSA), National Geospatial-Intelligence Agency, and National Reconnaissance Office.

The Central Intelligence Agency (CIA /ˌsiː.aɪˈeɪ/) is a civilian foreign intelligence service of the federal government of the United States tasked with advancing national security through collecting and analyzing intelligence from around the world and conducting covert operations. The agency is headquartered in the George Bush Center for Intelligence in Langley, Virginia, and is sometimes metonymously called "Langley". A major member of the United States Intelligence Community (IC), the CIA has reported to the director of national intelligence since 2004, and is focused on providing intelligence for the president and the Cabinet, though it also provides intelligence for a variety of other entities including the US Military and foreign allies.

The CIA is headed by a director and is divided into various directorates, including a Directorate of Analysis and Directorate of Operations. Unlike the Federal Bureau of Investigation (FBI), the CIA has no law enforcement function and focuses on intelligence gathering overseas, with only limited domestic intelligence collection. The CIA is responsible for coordinating all human intelligence (HUMINT) activities in the IC. It has been instrumental in establishing intelligence services in many countries, and has provided support to many foreign organizations. The CIA exerts foreign political influence through its paramilitary operations units, including its Special Activities Center. It has also provided support to several foreign political groups and governments, including planning, coordinating, training and carrying out torture, and technical support. It was involved in many regime changes and carrying out planned assassinations of foreign leaders and terrorist attacks against civilians.

Franklin Delano Roosevelt (January 30, 1882 – April 12, 1945), also known as FDR, was the 32nd president of the United States, serving from 1933 until his death in 1945. He is the longest-serving U.S. president, as well as the only one to have served more than two terms. His first two terms were centered on combating the Great Depression, while his third and fourth saw him shift his focus to U.S. involvement in World War II. A member of the Democratic Party, Roosevelt previously served in the New York State Senate from 1911 to 1913, the assistant secretary of the Navy under President Woodrow Wilson from 1913 to 1920, and as the 44th governor of New York from 1929 to 1932.

Born into the prominent Delano and Roosevelt families in Hyde Park, New York, Roosevelt graduated from Harvard University with a Bachelor of Arts. He entered Columbia Law School in 1904, but dropped out in 1907 after passing the New York bar examination. Roosevelt was elected to the New York State Senate from 1911 to 1913 before serving as the assistant secretary of the Navy under President Wilson during World War I. Roosevelt was James M. Cox's running mate on the Democratic ticket in the 1920 presidential election, which Cox lost to Republican nominee Warren G. Harding. In 1921, Roosevelt contracted a paralytic illness that permanently paralyzed his legs. However, he returned to the public office upon being elected governor of New York in 1928, partly through the encouragement of his wife Eleanor, and during his tenure as governor of New York, he promoted programs to combat the Great Depression. After receiving the Democratic nomination, Roosevelt defeated President Herbert Hoover in a landside victory in the 1932 presidential election.

Diplomacy is the communication by representatives of state, intergovernmental, or non-governmental institutions intended to influence events in the international system.

Diplomacy is the main instrument of foreign policy which represents the broader goals and strategies that guide a state's interactions with the rest of the world. International treaties, agreements, alliances, and other manifestations of international relations are usually the result of diplomatic negotiations and processes. Diplomats may also help shape a state by advising government officials.

Idealism in the foreign policy context holds that a nation-state should make its internal political philosophy the goal of its conduct and rhetoric in international affairs. For example, an idealist might believe that ending poverty at home should be coupled with tackling poverty abroad. Both within and outside of the United States, American president Woodrow Wilson is widely considered an early advocate of idealism and codifier of its practical meaning; specific actions cited include the issuing of the famous Fourteen Points.

Wilson's idealism was a precursor to liberal international relations theory, the particular set of viewpoints arising amongst the so-called "institution builders" after World War II. Organizations that came about as a direct result of the war's outcome include the International Monetary Fund (IMF) and the United Nations (UN) among others.

Washington, D.C., officially the District of Columbia and commonly known as simply Washington or D.C., is the capital city and federal district of the United States. The city is separated from Virginia to its southwest by the Potomac River and shares land borders with Maryland to its north and east. It was named after George Washington, a Founding Father and the first president of the United States. The district is named for Columbia, the female personification of the nation.

The U.S. Constitution in 1789 called for the creation of a federal district under exclusive jurisdiction of the U.S. Congress. As such, Washington, D.C., is not part of any state, and is not one itself. The Residence Act, adopted on July 16, 1790, approved the creation of the capital district along the Potomac River, and is considered the city's founding date. In 1800, when the capital was moved from Philadelphia, the 6th Congress started meeting in the then-unfinished Capitol Building, and the second president, John Adams, moved into the newly finished White House. In 1801, the District of Columbia, formerly part of Maryland and Virginia and including the existing settlements of Georgetown and Alexandria, was officially made the federal district; initially, the city was a separate settlement within the larger district. In 1846, Congress reduced the size of the district when it returned the land Virginia had ceded, including the city of Alexandria. In 1871, it made the entire district into a single municipality. There have been several failed efforts to make the district into a state since the 1880s, including a statehood bill that passed the House of Representatives in 2021 but was not adopted by the U.S. Senate.

The Constitution of the United States is the supreme law of the United States of America. It superseded the Articles of Confederation, the nation's first constitution, on March 4, 1789. Originally including seven articles, the Constitution defined the foundational structure of the federal government.

The drafting of the Constitution by many of the nation's Founding Fathers, often referred to as its framing, was completed at the Constitutional Convention, which assembled at Independence Hall in Philadelphia between May 25 and September 17, 1787. Influenced by English common law and the Enlightenment liberalism of philosophers like John Locke and Montesquieu, the Constitution's first three articles embody the doctrine of the separation of powers, in which the federal government is divided into the legislative, bicameral Congress; the executive, led by the president; and the judiciary, within which the Supreme Court has apex jurisdiction. Articles IV, V, and VI embody concepts of federalism, describing the rights and responsibilities of state governments, the states in relationship to the federal government, and the process of constitutional amendment. Article VII establishes the procedure used to ratify the constitution.

Millard Fillmore (January 7, 1800 – March 8, 1874) was the 13th president of the United States, serving from 1850 to 1853. He was the last president to be a member of the Whig Party while in the White House, and the last to be neither a Democrat nor a Republican. A former member of the U.S. House of Representatives, Fillmore was elected vice president in 1848, and succeeded to the presidency when Zachary Taylor died in 1850. Fillmore was instrumental in passing the Compromise of 1850, which led to a brief truce in the battle over the expansion of slavery.

Fillmore was born into poverty in the Finger Lakes area of upstate New York. He had little formal schooling, but studied to become a lawyer. Fillmore became prominent in the Buffalo area as an attorney and politician, and was elected to the New York Assembly in 1828 and the House of Representatives in 1832. Fillmore initially belonged to the Anti-Masonic Party, but became a member of the Whig Party as it formed in the mid-1830s. He was a rival for the state party leadership with Thurlow Weed and his protégé William H. Seward. Throughout his career, Fillmore declared slavery evil but said it was beyond the federal government's power to end it. Conversely, Seward argued that the federal government had a role to play. Fillmore was an unsuccessful candidate for Speaker of the U.S. House of Representatives when the Whigs took control of the chamber in 1841, but was made chairman of the Ways and Means Committee. Defeated in bids for the Whig nomination for vice president and for New York governor in 1844, Fillmore was elected Comptroller of New York in 1847, the first to hold that post by election.

The United States Census Bureau, officially the Bureau of the Census, is a principal agency of the U.S. federal statistical system, responsible for producing data about the American people and economy. The U.S. Census Bureau is part of the U.S. Department of Commerce and its director is appointed by the president of the United States. As of September 19, 2025, George Cook is the acting director of the U.S. Census Bureau.

The Census Bureau's primary mission is conducting the U.S. census every ten years, which allocates the seats of the U.S. House of Representatives to the states based on their population. The bureau's various censuses and surveys help allocate over $675 billion in federal funds every year and it assists states, local communities, and businesses in making informed decisions. The information provided by the census informs decisions on where to build and maintain schools, hospitals, transportation infrastructure, and police and fire departments.

The United States of America is a federal republic consisting of 50 states, a federal district (Washington, D.C., the capital city of the United States), five major territories, and minor islands. Both the states and the United States as a whole are each sovereign jurisdictions. The Tenth Amendment to the United States Constitution allows states to exercise all powers of government not delegated to the federal government. Each state has its own constitution and government. All states and their residents are represented in the federal Congress, a bicameral legislature consisting of the Senate and the House of Representatives. Each state elects two senators, while representatives are distributed among the states in proportion to the most recent constitutionally mandated decennial census.

Each state is entitled to select a number of electors to vote in the Electoral College, the body that elects the president of the United States, equal to the total of representatives and senators in Congress from that state. The federal district does not have representatives in the Senate, but has a non-voting delegate in the House, and it is entitled to electors in the Electoral College. Congress can admit more states, but it cannot create a new state from territory of an existing state or merge two or more states into one without the consent of all states involved. Each new state is admitted on an equal footing with the existing states.

The United States federal executive departments are the principal units of the executive branch of the federal government of the United States. The executive departments are the administrative arms of the president of the United States. They are analogous to ministries common in parliamentary or semi-presidential systems but (the United States being a presidential system) they are led by a head of government who is also the head of state. There are currently 15 executive departments.

The federal government of the United States (U.S. federal government or U.S. government) is the national government of the United States.

The U.S. federal government is composed of three distinct branches: legislative, executive, and judicial. The powers of these three branches are defined and vested by the U.S. Constitution, which has been in continuous effect since March 4, 1789. The powers and duties of these branches are further defined by Acts of Congress, including the creation of executive departments and courts subordinate to the U.S. Supreme Court.

The powers of the president of the United States include those explicitly granted by Article II of the United States Constitution as well as those granted by Acts of Congress, implied powers, and also a great deal of soft power that is attached to the presidency.

The Constitution explicitly assigns the president the power to sign or veto legislation, command the armed forces, ask for the written opinion of their Cabinet, convene or adjourn Congress, grant reprieves and pardons, and receive ambassadors. The president takes care that the laws are faithfully executed and has the power to appoint and remove executive officers; as a result of these two powers, the president can direct officials on how to interpret the law (subject to judicial review) and on staffing and personnel decisions. The president may make treaties, which need to be ratified by two-thirds of the Senate, and is accorded those foreign-affairs functions not otherwise granted to Congress or shared with the Senate. Thus, the president can control the formation and communication of foreign policy and can direct the nation's diplomatic corps. The president may also appoint Article III judges and some officers with the advice and consent of the U.S. Senate. In the condition of a Senate recess, the president may make a temporary appointment.

The United States Intelligence Community (IC) is a group of separate U.S. federal government intelligence agencies and subordinate organizations that work to conduct intelligence activities which support the foreign policy and national security interests of the United States. Member organizations of the IC include intelligence agencies, military intelligence, and civilian intelligence and analysis offices within federal executive departments.

The IC is overseen by the Office of the Director of National Intelligence (ODNI), which is headed by the director of national intelligence (DNI) who reports directly to the president of the United States. The IC was established by Executive Order 12333 ("United States Intelligence Activities"), signed on December 4, 1981, by President Ronald Reagan. The statutory definition of the IC, including its roster of agencies, was codified as the Intelligence Organization Act of 1992 (Pub. L. 102–496, H.R. 5095, 106 Stat. 3188).