Assyrian siege towers countered wall elevations by matching defender height and battering walls.

Evidence

Assyrian siege towers stood three stories tall, permitting attackers to fight from the same height as the defenders. Wooden battlements lined the top floors, giving archers cover as they fired. Each tower was fronted with a drawbridge that could be dropped into place when the tower got close enough to a wall. Middle levels in the tower carried additional troops prepared to rush up ladders as soon as the drawbridge was lowered. The bottom floor housed a battering ram. A giant iron-tipped log hung suspended from the frame so that it could be swung back and forth into the fortress walls. Like a massive crowbar, a wedged ram could also be rocked side to side, prying stones from the wall once cracks started to form. — Emlen, Douglas J, Animal Weapons_ The Evolution of Battle, 480

Categorization

• XREF: connects to: Assyrians multiplied assault points to overstretch thin defender coverage across the perimeter. — Emlen, Douglas J, Animal Weapons_ The Evolution of Battle, 479

Related

• Assyrians multiplied assault points to overstretch thin defender coverage across the perimeter. (similarity 0.92)
• Siege equipment grew enormous, with towers pushed by thousands of men (similarity 0.89)
• Siege artillery evolved to exploit the fragility of fortress wall corners (similarity 0.82)
• Pushing siege weapons to longer range only drove artillery growth (similarity 0.81)
• City fortification walls evolved progressively from palisades to layered battlement systems by 1500 BCE. (similarity 0.80)
• Bombers evolved like castles, adding all-around defenses against attackers (similarity 0.80)
• Round towers replaced square ones because corners were vulnerable to artillery (similarity 0.79)