Hey
lightdaaf,
You gain ranking and PvP points, which goes to a certain tournament. These tournaments are held weekly, and there are different levels for different Ages. You are awarded a certain number of medals by attaining certain positions in those tournaments, which concludes at the end of the week. These medals can then be used to purchase territory for your own city.
Don't you think that it would be too cruel if everytime a neighbour attacks you and wins, you were to lose all your defence? In one single combat? What about the next guy who takes a turn at you? Then you would be completely defenceless - easy victory for him. Also, the fact that you cannot control your defending army should be seen as a reason why your defence should not suffer any damage. This feature is in place to protect the players who are just starting out, from the stronger players, who probably started earlier and had more time to develop. Imagine if you just started this game, you have no defenses, and someone just swoops in, attack the two miserable troops that the game puts in by default, and wins? Going by your idea, he takes your entire city, gaining all the benefits that come with it. You, on the other hand, simply restart a new city. And the same thing happens. How long will it be before you get frustrated and not bother trying any more? You would probably think that the developers are awful and that this game favours the strong.
It is extremely unlikely that the developers will ever change the game in the direction you are suggesting.