U.S. Army in the context of "Vehicle armour"

Combat arms (or fighting arms in non-American parlance) are troops within national armed forces who participate in direct tactical ground combat. In general, they are units that carry or employ weapons, such as infantry, cavalry, and artillery units. The use of multiple combat arms in mutually supporting ways is known as combined arms. In some armies, notably the British Army and Canadian Army, artillery and combat engineer units are categorized as combat support, while in others, such as the U.S. Army, they are considered part of the combat arms. Armored troops constitute a combat arm in name, although many have histories derived from cavalry units.

Artillery is included as a combat arm primarily based on the history of employing cannons in close combat, and later in the anti-tank role until the advent of anti-tank guided missiles. The inclusion of special forces in some armed forces as a separate combat arm is often doctrinal because the troops of special forces units are essentially specialized infantry, often with historical links to ordinary light infantry units.

Andrew Jackson (March 15, 1767 – June 8, 1845) was the seventh president of the United States from 1829 to 1837. He rose to fame as a U.S. Army general and served in both houses of the U.S. Congress. His political philosophy, which dominated his presidency, became the basis for the rise of Jacksonian democracy. His legacy is controversial: he has been praised as an advocate for working Americans and preserving the union of states, and criticized for his racist policies, particularly towards Native Americans. He was also the founder of, and first president from, the Democratic Party, which dominates American politics to this day along with the Republican Party.

Jackson was born in the colonial Carolinas before the American Revolutionary War. He became a frontier lawyer and married Rachel Donelson Robards. He briefly served in the U.S. House of Representatives and the U.S. Senate, representing Tennessee. After resigning, he served as a justice on the Tennessee Superior Court from 1798 to 1804. He purchased a plantation later known as the Hermitage, becoming a wealthy planter who profited off the forced labor of hundreds of enslaved African Americans during his lifetime. In 1801, he was appointed colonel of the Tennessee militia and was elected its commander. He led troops during the Creek War of 1813–1814, winning the Battle of Horseshoe Bend and negotiating the Treaty of Fort Jackson that required the indigenous Creek population to surrender vast tracts of the present-day U.S. states of Alabama and Georgia. In the concurrent war against the British, Jackson's victory at the Battle of New Orleans in 1815 made him a national hero. He later commanded United States forces during the First Seminole War against the Seminoles and other allied Native groups. This campaign was one of the factors that prompted Spain to negotiate the cession of Florida to the United States, which was finalized in the Adams–Onís Treaty of 1819, in exchange for United States renunciation of territorial claims. He briefly served as Florida's first territorial governor before returning to the Senate. He ran for president in 1824. He won a plurality of the popular and electoral vote, but no candidate won the electoral majority. With the help of Henry Clay, the House of Representatives elected John Quincy Adams as president. Jackson's supporters alleged that there was a "corrupt bargain" between Adams and Clay (who joined Adams' cabinet) and began creating a new political coalition that became the Democratic Party in the 1830s.

Military camouflage is the use of camouflage by an armed force to protect personnel and equipment from observation by enemy forces. In practice, this means applying colour and materials to military equipment of all kinds, including vehicles, ships, aircraft, gun positions and battledress, either to conceal it from observation (crypsis), or to make it appear as something else (mimicry). The French slang word camouflage came into common English usage during World War I when the concept of visual deception developed into an essential part of modern military tactics. In that war, long-range artillery and observation from the air combined to expand the field of fire, and camouflage was widely used to decrease the danger of being targeted or enable surprise. As such, military camouflage is a form of military deception in addition to cultural functions such as political identification.

Camouflage was first practiced in simple form in the mid 18th century by rifle units. Their tasks required them to be inconspicuous, and they were issued green and later other drab colour uniforms. With the advent of longer range and more accurate weapons, especially the repeating rifle, camouflage was adopted for the uniforms of all armies, spreading to most forms of military equipment including ships and aircraft.

Field artillery is a category of mobile artillery used to support armies in the field. These weapons are specialized for mobility, tactical proficiency, short range, long range, and extremely long range target engagement.

Until the early 20th century, field artillery were also known as foot artillery, for while the guns were pulled by beasts of burden (often horses), the gun crews would usually march on foot, thus providing fire support mainly to the infantry. This was in contrast to horse artillery, whose emphasis on speed while supporting cavalry units necessitated lighter guns and crews riding on horseback.

Henry Alfred Kissinger (May 27, 1923 – November 29, 2023) was an American diplomat and political scientist who served as the 56th United States secretary of state from 1973 to 1977 and the 7th national security advisor from 1969 to 1975, serving under presidents Richard Nixon and Gerald Ford.

Born in Germany, Kissinger emigrated to the United States in 1938 as a Jewish refugee fleeing Nazi persecution. He served in the U.S. Army during World War II. After the war, he attended Harvard University, where he excelled academically. He later became a professor of government at the university and earned an international reputation as an expert on nuclear weapons and foreign policy. He acted as a consultant to government agencies, think tanks, and the presidential campaigns of Nelson Rockefeller and Nixon before being appointed as national security advisor and later secretary of state by President Nixon.

The Lewis and Clark Expedition, also known as the Corps of Discovery Expedition, was the United States expedition to cross the newly acquired western portion of the country after the Louisiana Purchase. The Corps of Discovery was a select group of U.S. Army and civilian volunteers under the command of Captain Meriwether Lewis and his close friend Second Lieutenant William Clark. Clark, along with 30 others, set out from Camp Dubois (Camp Wood), Illinois, on May 14, 1804, met Lewis and ten other members of the group in St. Charles, Missouri, then went up the Missouri River. The expedition crossed the Continental Divide of the Americas near the Lemhi Pass, eventually coming to the Columbia River, and the Pacific Ocean in 1805. The return voyage began on March 23, 1806, at Fort Clatsop, Oregon, ending six months later on September 23 of that year.

President Thomas Jefferson commissioned the expedition, shortly after the Louisiana Purchase of 1803, to explore and detail as much of the new territory as possible. Furthermore, he wished to find a practical travel route across the western half of the continent—directly avoiding the hot and desolate desert southwest—and to establish an American presence in the new lands before European powers attempted to establish claims of their own. The campaign's secondary objectives were scientific, economical and humanitarian, i.e., to document the West's biodiversity, topography and geography and to establish positive trade relations with (potentially unknown) Native American tribes. The expedition returned to St. Louis to report their findings to President Jefferson via maps, sketches, and various journals.

Albert Arnold Gore Jr. (born March 31, 1948) is an American politician, businessman, and environmentalist who served as the 45th vice president of the United States from 1993 to 2001 under President Bill Clinton. A member of the Democratic Party, he previously represented Tennessee in both houses of the U.S. Congress, first as a member of the U.S. House of Representatives from 1977 to 1985, and then as a U.S. senator from 1985 to 1993. Gore was the Democratic nominee for president of the United States in 2000; he lost to George W. Bush despite winning the popular vote.

The son of politician Albert Gore Sr., Gore was raised in Tennessee and Washington, D.C., where he was born. After graduating from Harvard University and serving in the U.S. Army, he quit law school to run as a representative for Tennessee's 4th congressional district in 1976. Gore was re-elected three times before running for U.S. Senate in 1984, winning re-election in 1990. He was considered a moderate and an "Atari Democrat". Gore served as vice president during the Clinton administration from 1993 to 2001, defeating then-incumbents George H. W. Bush and Dan Quayle in 1992, and Bob Dole and Jack Kemp in 1996, and was the first Democrat to serve two full terms as vice president since John Nance Garner. As of 2025, Gore's 1990 re-election remains the last time Democrats won a Senate election in Tennessee.

Military discipline is the obedience to a code of conduct while in military service.

According to the U.S. Army Field Manual 7-21.13 4-4: