Is there a mod that allow upgrading without iron?

[cometheart]

Is there a mod that allow you to build and upgrade your knight ( or any other more powerful units) without stategic resources?

 

[Gedemon]

There is this one, but with other changes related to combat:
https://forums.civfanatics.com/threads/combat-and-stacking-overhaul.608292/

 

[cometheart]

There is this one, but with other changes related to combat:
https://forums.civfanatics.com/threads/combat-and-stacking-overhaul.608292/

Thanks!