In what way were the Assyrian empire and the Persian empire similar?

Both the Assyrian empire and the Persian empire were large, powerful, and centralized empires that controlled vast territories and diverse populations. They were known for their efficient administrative systems, infrastructure development, and military prowess. Both empires also engaged in conquest and expansion, seeking to expand their territories and influence over neighboring regions. Additionally, both empires were known for their cultural and religious tolerance, allowing various ethnic and religious groups to coexist within their borders.