Cannon in the context of "Dardanelles Gun"

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.

Gunpowder is the first explosive to have been created in the world. Popularly listed as one of the "Four Great Inventions" of China, it was invented during the late Tang dynasty (9th century) while the earliest recorded chemical formula for gunpowder dates to the Song dynasty (11th century). Knowledge of gunpowder spread rapidly throughout Eurasia, possibly as a result of the Mongol conquests during the 13th century, with written formulas for it appearing in the Middle East between 1240 and 1280 in a treatise by Hasan al-Rammah, and in Europe by 1267 in the Opus Majus by Roger Bacon. It was employed in warfare to some effect from at least the 10th century in weapons such as fire arrows, bombs, and the fire lance before the appearance of the gun in the 13th century. While the fire lance was eventually supplanted by the gun, other gunpowder weapons such as rockets and fire arrows continued to see use in China, Korea, India, and this eventually led to its use in the Middle East, Europe, and Africa. Bombs too never ceased to develop and continued to progress into the modern day as grenades, mines, and other explosive implements. Gunpowder has also been used for non-military purposes such as fireworks for entertainment, or in explosives for mining and tunneling.

The evolution of guns led to the development of large artillery pieces, popularly known as bombards, during the 15th century, pioneered by states such as the Duchy of Burgundy. Firearms came to dominate early modern warfare in Europe by the 17th century. The gradual improvement of cannons firing heavier rounds for a greater impact against fortifications led to the invention of the star fort and the bastion in the Western world, where traditional city walls and castles were no longer suitable for defense. The use of gunpowder technology also spread throughout the Islamic world and to India, Korea, and Japan. The so-called Gunpowder Empires of the early modern period consisted of the Mughal Empire, Safavid Empire, and Ottoman Empire.

A muzzleloader is any firearm in which the user loads the projectile and the propellant charge into the muzzle end of the gun (i.e., from the forward, open end of the gun's barrel). This is distinct from the modern designs of breech-loading firearms, in which user loads the ammunition into the breech end of the barrel. The term "muzzleloader" applies to both rifled and smoothbore type muzzleloaders, and may also refer to the marksman who specializes in the shooting of such firearms. The firing methods, paraphernalia and mechanism further divide both categories as do caliber (from cannons to small-caliber palm guns).

Modern muzzleloading firearms range from reproductions of sidelock, flintlock and percussion long guns, to in-line rifles that use modern inventions such as a closed breech, sealed primer and fast rifling to allow for considerable accuracy at long ranges.

Artillery consists of ranged weapons that launch munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, and led to heavy, fairly immobile siege engines. As technology improved, lighter, more mobile field artillery cannons were developed for battlefield use. This development continues today; modern self-propelled artillery vehicles are highly mobile weapons of great versatility generally providing the largest share of an army's total firepower.

Originally, the word "artillery" referred to any group of soldiers primarily armed with some form of manufactured weapon or armour. Since the introduction of gunpowder and cannon, "artillery" has largely meant cannon, and in contemporary usage, usually refers to shell-firing guns, howitzers, and mortars (collectively called barrel artillery, cannon artillery or gun artillery) and rocket artillery. In common speech, the word "artillery" is often used to refer to individual devices, along with their accessories and fittings, although these assemblages are more properly called "equipment". However, there is no generally recognized generic term for a gun, howitzer, mortar, and so forth: the United States uses "artillery piece", but most English-speaking armies use "gun" and "mortar". The projectiles fired are typically either "shot" (if solid) or "shell" (if not solid). Historically, variants of solid shot including canister, chain shot and grapeshot were also used. "Shell" is a widely used generic term for a projectile, which is a component of munitions.

A gun barrel is a crucial part of gun-type weapons such as small firearms, artillery pieces, and air guns. It is the straight shooting tube, usually made of rigid high-strength metal, through which a contained rapid expansion of high-pressure gas(es) is used to propel a projectile out of the front end (muzzle) at a high velocity. The hollow interior of the barrel is called the bore, and the diameter of the bore is called its calibre, usually measured in inches or millimetres.

The first firearms were made at a time when metallurgy was not advanced enough to cast tubes capable of withstanding the explosive forces of early cannons, so the pipe (often built from staves of metal) needed to be braced periodically along its length for structural reinforcement, producing an appearance somewhat reminiscent of storage barrels being stacked together, hence the English name.

A bastion fort or trace italienne (a phrase derived from non-standard French, meaning 'Italian outline') is a fortification in a style developed during the early modern period in response to the ascendancy of gunpowder weapons such as cannon, which rendered earlier medieval approaches to fortification obsolete. It appeared in the mid-fifteenth century in Italy. Some types, especially when combined with ravelins and other outworks, resembled the related star fort of the same era.

The design of the fort is normally a polygon with bastions at the corners of the walls. These outcroppings eliminated protected blind spots, called "dead zones", and allowed fire along the curtain wall from positions protected from direct fire. Many bastion forts also feature cavaliers, which are raised secondary structures based entirely inside the primary structure.

The bombard is a type of cannon or mortar which was used throughout the Late Middle Ages and the early modern period. Bombards were mainly large calibre, muzzle-loading artillery pieces used during sieges to shoot round stone projectiles at the walls of enemy fortifications, enabling troops to break in. Most bombards were made of iron and used gunpowder to launch the projectiles. There are many examples of bombards, including Mons Meg, the Basilic, the Dardanelles Gun, and the handheld bombard.

The weapon provided the name to the Royal Artillery rank of bombardier and the word bombardment.

The Southern Ming (Chinese: 南明; pinyin: Nán Míng), also known in historiography as the Later Ming (simplified Chinese: 后明; traditional Chinese: 後明; pinyin: Hòu Míng), officially the Great Ming (Chinese: 大明; pinyin: Dà Míng), was an imperial dynasty of China and a series of rump states of the Ming dynasty that came into existence following the Jiashen Incident of 1644. Peasant rebels led by Li Zicheng who founded the short-lived Shun dynasty captured Beijing and the Chongzhen Emperor committed suicide. The Ming general Wu Sangui then opened the gates of the Shanhai Pass in the eastern section of the Great Wall to the Qing banners, in hope of using them to annihilate the Shun forces. Ming loyalists fled to Nanjing, where they enthroned Zhu Yousong as the Hongguang Emperor, marking the start of the Southern Ming. The Nanjing regime lasted until 1645, when Qing forces captured Nanjing. Zhu fled before the city fell, but was captured and executed shortly thereafter. Later figures continued to hold court in various southern Chinese cities, although the Qing considered them to be pretenders.

The Nanjing regime lacked the resources to pay and supply its soldiers, who were left to live off the land and pillaged the countryside. The soldiers' behavior was so notorious that they were refused entry by those cities in a position to do so. Court official Shi Kefa obtained modern cannons and organized resistance at Yangzhou. The cannons mowed down a large number of Qing soldiers, but this only enraged those who survived. After the Yangzhou city fell in May 1645, the Manchus started a general massacre pillage and enslaved all the women and children in the notorious Yangzhou massacre. Nanjing was captured by the Qing on June 6 and the Hongguang Emperor was taken to Beijing and executed in 1646.

The First Battle of Panipat, on 21 April 1526 was fought between the invading forces of Babur against Ibrahim Khan Lodi, the Sultan of Delhi, in North India. Babur's forces, employing gunpowder firearms and cannons, defeated Ibrahim. This was one of the earliest battles involving gunpowder arms on the Indian subcontinent. The victory marked the beginning of Mughal rule in India.

"Gunpowder empires", or "Islamic gunpowder empires", is a term coined by the American historians Marshall G. S. Hodgson and William H. McNeill to describe three early modern Muslim empires: the Ottoman Empire, Safavid Empire and the Mughal Empire, which flourished between the mid-16th and early 18th centuries.

McNeill focused on the history of gunpowder use across multiple civilizations in East Asia, Europe, and India in his 1993 work The Age of Gunpowder Empires. The gunpowder empires conquered vast amounts of territory with the use and deployment of newly invented firearms, especially cannon and small arms; together they stretched from Central Europe and North Africa in the west to Bengal and Arakan in the east. In the case of Europe, the introduction of gunpowder weapons also prompted changes such as the rise of centralised monarchical states. As a result, the three empires were among the most stable of the early modern period, leading to commercial expansion, cultural patronage, and the consolidation of political and legal institutions.