What is the ideal army composition needed to conquer a city in the industrial and modern eras?

[bradebuque]

Hello good folks of civ fanatics.

I just wanna know what is the ideal army composition needed to conquer a city in the industrial era. I Mean: how many artillery/soldiers/ aircrafts/ machine guns, etc?

And also it would be good if you guys also tell me what is the army composition needed in the modern era.

AND also in the atomic era, it would be good.

This kind of information would make wars more predictable instead of just trowing a bunch of guys and praying to jesus to help you.

Thx.

 

[cocls]

artillery + cavalry is almost always the best composition for industrial era