Theres a capital at the center of your spawing point. It gives you bonuses.
x% more gold from trades
Increase pop produce speed
If the capital gets captured you dont lose, but you get weaker a lot, so you can rebuild it with gold. Your capital is your color and the captured capital stays the captured nation's color even after its captured. You can't rebuild a captured capital.
It has a lot of health and you can heal it with gold.
You can change the location of ur capital with a lot of gold once in about 7 min
This will make users use defense posts strategically and think a lot where to place the capital.