I've just had a read through the whole game and as far as I can see there were very few mistakes,except for one player who managed to loose not one army but two.What's he like?
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The shape of our civ made defense very difficult,for most of the game nearly all our cities were in the front line.The lack of horses was another burden.
The kill ratio was quite extraordinary considering that we had no horses for most of the game.As soon as we got them it "was good night nurse" to the rest of the AI.
When the terrain is taken into consideration,desert to the north,jungle to the south,it makes our efforts even more rewarding.