A phalanx (plural phalanxes or phalanges) is a rectangular mass military formation, usually composed entirely of heavy infantry armed with spears, pikes, or similar weapons. The troops were disciplined to hold a line which created a nearly impenetrable forest of points to the front.

A flower war or "Flowery war" is the name given to the battles fought between the Aztec Triple Alliance and some of their enemies: most notably the city-states of Tlaxcala, Huexotzinco, Atlixco and Cholula.

Greek fire was a burning-liquid weapon used by the Byzantine Greeks, Chinese, Mongols, and Arabs. The Byzantines typically used it in naval battles to great effect as it could continue burning even on water.

The bazooka is a man-portable anti-tank rocket launcher, made famous during World War II where it was one of the primary infantry anti-tank weapons used by the United States Armed Forces.

Napalm is any of a number of flammable liquids used in warfare, often jellied gasoline. Napalm is actually the thickener in such liquids, which when mixed with gasoline makes a sticky incendiary gel.

Hussar (original Hungarian spelling: huszár, plural huszárok, Polish: Husaria) refers to a number of types of cavalry used throughout Europe since the 15th century. Some modern military units retain the title 'hussar' for reasons of tradition.

Dragoon is the traditional name for a soldier trained to fight on foot but transport himself on horseback, in use especially during the 17th and early 18th centuries.

Situational awareness (SA) is the mental representation and understanding of objects, events, people, system states, interactions, environmental conditions, and other situation-specific factors affecting human performance in complex and dynamic tasks.

Unconventional warfare (UW) is the opposite of conventional warfare. Where conventional warfare seeks to reduce an opponent's military capability, unconventional warfare is an attempt to achieve military victory through acquiescence, capitulation, or clandestine support for one side of an existing conflict. On the surface, UW contrasts with conventional warfare in that: forces or objectives are covert or not well-defined, tactics and weapons intensify environments of subversion or intimidation, and the general or long-term goals are coercive or subversive to a political body.

In the military science of fortification, wire obstacles are defensive obstacles made from barbed wire, barbed tape or concertina wire. They are designed to disrupt or delay an attacking enemy. Depending on the requirements and available resources, wire obstacles may range from a simple barbed wire fence in front of a defensive position, to elaborate patterns of fences, concertinas, 'dragon's teeth' and minefields hundreds of metres thick.

Shrapnel is the term commonly used to describe the metal fragments and debris thrown out by any exploding object, be it a high explosive (HE) filled shell or a homemade bomb wrapped with nails or ball bearings.

An anti-tank guided missile (ATGM) or anti-tank guided weapon (ATGW) is a guided missile primarily designed to hit and destroy heavily-armored tanks and other armored fighting vehicles. ATGMs range in size from shoulder-launched weapons which can be transported by a single soldier, to larger tripod mounted weapons which require a squad or team to transport and fire, to vehicle and aircraft mounted missile systems.

A tankette is a type of small armoured fighting vehicle resembling a tank, intended for infantry support or reconnaissance. Tankettes were designed and built by several nations between about 1930 and 1935, and saw some combat in the Second World War.

Tracer ammunition (tracers) use special bullets that are modified to accept a small pyrotechnic charge in their base. Ignited upon firing, the composition burns very brightly making the projectile visible to the naked eye. This enables the shooter to follow the bullet trajectory relative to the target in order to make corrections to their aim.

A turbocharger is an exhaust-gas driven forced induction device used in internal combustion engines to improve engine performance by forcing compressed air into the combustion chambers, allowing more fuel to be burned, resulting in a larger power output.