#military engineering

• Agger — An earthen rampart, embankment, dyke, or artificial fortification raised in antiquity, particularly by the Roman army, to protect a military camp (castrum) or to serve as an assault ramp during city sieges. It represents a compact defensive or offensive structure built by the orderly accumulation of earth, stones, and logs.
• Chemical-resistant — Protecting against the harmful effects of toxic chemical substances, chemical warfare agents, or industrial pollutants; designed to neutralize, block, or decontaminate aggressive chemical agents. In the military and civil protection fields, the term describes safety equipment, such as gas masks or insulating suits specially engineered for operations in contaminated environments.
• Arab-Tabia — The name of a historical Ottoman fortification of outstanding strategic importance, located near the city of Silistra (on the Danube bank); structurally built or expanded in the 19th century, it was the scene of violent battles during the Crimean War and the Russo-Turkish War, being famous in historiography for its defensive resistance.
• Thrower — A noun or adjective designating a person specialized in or a technical device designed for launching, propelling, or throwing an object, a projectile, or a substance into space. In sports, it indicates an athlete competing in throwing events (javelin, discus, hammer, shot put) or the player who throws the ball back into play, while in military or industrial terminology, it refers to mechanical installations or weapons intended for projecting loads at a distance.