Which civilisation invented shield wall? How did the new tactic affect the battles?
Answer:
It is difficult to say who originally developed the shield wall, but records from Mesopotamia show it has been in use since at least 3000 B.C. A shield wall is effective as it creates a military unit that is harder to push back as the pressure is spread over multiple people instead of just one individual. It created a solid wall of soldiers that could effectively fight against armies that were less organized. The tactic was used by Greek, Roman, Viking, and other armies until the arrival of gunpowder.