#siege warfare

• Crossbowman — A foot or mounted soldier in medieval armies armed with a crossbow, specialized in long-range target shooting and tactical self-defense behind large shields (pavises). In the 14th and 15th centuries, crossbowmen units (such as the Genoese) formed elite mercenary corps highly sought after by European monarchs for their efficiency in sieges.
• Arcubalister — A medieval soldier or warrior specialized in handling, maintaining, and firing an arcubalista (a heavy siege or fortification crossbow). In a structural and tactical context, the arcubalistar held a critical role in fortress defense, being responsible for the mechanical calibration of windlass or pulley tensioning systems to launch massive projectiles with devastating impact force against enemy lines.
• Besieger — A person, army, or military force that surrounds a fortress, town, or enemy fortified position to isolate it, block it, and force it to surrender; a besieger. As an adjective, it describes troops, equipment, or tactical actions intended for conducting and maintaining a prolonged siege.