In the tribe war’s tunnel may open under any condition

I wanted to open the tunnel, then let everybody snatch my resources, I did not want to play, the game too could consume my energy.
Server:http://s7.travian.cn/dorf1.php
Coordinate:x173 y103
Only then achieves 10 levels in the central building, only then may demolish the building.The cave and other buildings are also same.
Also has may let the Germanic race snatch your resources.They may snatch you in the cave 1/3 resources.