Polearm in the context of "Ji (polearm)"

The phalanx (pl.: phalanxes or phalanges) was a rectangular mass military formation, usually composed entirely of heavy infantry armed with spears, pikes, sarissas, or similar polearms tightly packed together. The term is used today to describe the use of this formation in ancient Greek warfare, but ancient Greek writers used it more broadly to describe any massed infantry formation regardless of its equipment. In Greek texts, the phalanx may be deployed for battle, on the march, or even camped, thus describing the mass of infantry or cavalry that would deploy in line during battle. They marched forward as one entity.

The term itself, as used today, does not refer to a distinctive military unit or division (e.g., the Roman legion or the contemporary Western-type battalion), but to the type of formation of an army's troops. Therefore, this term does not indicate a standard combat strength or composition but includes the total number of infantry, which is deployed in a single formation known as a "phalanx".

A spear is a polearm consisting of a shaft, usually of wood, with a pointed head. The head may be simply the sharpened end of the shaft itself, as is the case with fire hardened spears, or it may be made of a more durable material fastened to the shaft, such as bone, flint, obsidian, copper, bronze, iron, or steel. The most common design for hunting and/or warfare, since modern times has incorporated a metal spearhead shaped like a triangle, diamond, or leaf. The heads of fishing spears usually feature multiple sharp points, with or without barbs.

Spears can be divided into two broad categories: those designed for thrusting as a melee weapon (including weapons such as lances and pikes) and those designed for throwing as a ranged weapon (usually referred to as javelins).

A trident (/ˈtraɪdənt/) is a three-pronged spear. It is used for spear fishing and historically as a polearm. As compared to an ordinary spear, the three tines increase the chance that a fish will be struck and decrease the chance that a fish will be able to dislodge itself if struck badly. On the other hand, they are not so many as to overly reduce the spear's concentration of force for piercing.

The trident is the tool of Poseidon (Greek) or Neptune (Roman) used for the protection of the sea realms, the god of the sea in classical mythology. Other sea deities such as Amphitrite or Triton were also often depicted with a trident in classical art. Later, tridents were used in medieval heraldry, sometimes held by a merman or triton. In Hinduism, it is the weapon of Shiva and is known as a trishula (Sanskrit for "triple-spear"). It is also associated with the superhero Aquaman. The trident is an important military (especially naval) symbol as an element for forces such as Hellenic Navy, United States Navy SEALs, United States Naval Academy, Cyprus Navy, and Nepali Army. It is included in many logos including the corporate logos of Maserati and Club Med and the athletic logos of Manchester United F.C. and Arizona State University.

A battle axe (also battle-axe, battle ax, or battle-ax) is an axe specifically designed for combat. Battle axes were designed differently to utility axes, with blades more akin to cleavers than to wood axes. Many were suitable for use in one hand, while others were larger and were deployed two-handed.

Axes designed for warfare ranged in weight from just over 0.5 to 3 kg (1 to 7 lb), and in length from just over 30 cm (1 ft) to upwards of 150 cm (5 ft), as in the case of the Danish axe or the sparth axe. Cleaving weapons longer than 150 cm (5 ft) would arguably fall into the category of polearms.

The fire lance (simplified Chinese: 火枪; traditional Chinese: 火槍; pinyin: huǒqiāng; lit. 'fire spear') was a gunpowder weapon used by lighting it on fire, and is the ancestor of modern firearms. It first appeared in 10th–12th century China and was used to great effect during the Jin-Song Wars. It began as a small pyrotechnic device attached to a polearm weapon, used to gain a shock advantage at the start of a melee. As gunpowder improved, the explosive discharge was increased, and debris or pellets added, giving it some of the effects of a combination modern flamethrower and shotgun, but with a very short range (about 3 meters or 10 feet), and only one shot (although some were designed for two shots). By the late 13th century, fire lance barrels had transitioned to metal material to better withstand the explosive blast, and the lance-point was discarded in favor of relying solely on the gunpowder blast. These became the first hand cannons.

A halberd (also called halbard or halbert) is a two-handed polearm that was in prominent use from the 13th to 16th centuries. The halberd consists of an axe blade topped with a spike mounted on a long shaft. It may have a hook or thorn on the back of the axe blade for grappling mounted combatants and protecting allied soldiers, typically musketeers. The halberd was usually 1.5 to 1.8 metres (4.9 to 5.9 ft) long.

The word halberd is cognate with the German word Hellebarde, deriving from Middle High German halm (handle) and barte (battleaxe) joined to form helmbarte. Troops that used the weapon were called halberdiers or halbardiers. The word has also been used to describe a weapon of the early Bronze Age in Western Europe. This consisted of a blade mounted on a pole at a right angle.