The goblin base under the name of Mother Fortress was the largest and most massive base of the goblin race in the northern part of the Asian continent. This base was so large that its size was comparable to the entire Changping District of Beijing City.
With over 10,000,000 goblins among which all of them were fierce and savage soldiers, attacking this base was out of the question for all races except for the few straggling zombies that were not yet under the leadership of a zombie commander or zombie general.
Whoever was the leader of the goblin race on this side of the world was certainly intelligent, this could be seen by the fact that the over 300-meter high walls were made not of tree trunks but of giant stones. How long had it taken the goblins to move those boulders? Only they knew but it was definitely a work of many months of effort.