I had one iron ore mine that I had exhausted. I used it to the point that I could not create/upgrade anymore iron type units. I then traded with a neighbor who sent me 2 additional iron ore units.
It seems reasonable then that now that I have 2 new iron ore sources, I should be able to build/upgrade iron units. However no amount of allying with city states that had iron ore or trading with the AI for iron would allow me to produce iron units.
I was able to produce iron units when I conquered a second iron ore mine.
It seems reasonable then that now that I have 2 new iron ore sources, I should be able to build/upgrade iron units. However no amount of allying with city states that had iron ore or trading with the AI for iron would allow me to produce iron units.
I was able to produce iron units when I conquered a second iron ore mine.
