In Zhou Tian's plan, there wouldn't be any problem if both sides chose to mobilize their troops. This is the best case scenario. After eliminating all the NPCs, Zhou Tian can carry on to fight the goblins.
However, if the NPCs opt to resist him forcefully, foregoing their resist against the goblins, Zhou Tian would be willing to pin down the NPCs' main force on behalf of the goblins. Because Zhou Tian understands clearly - compared to dealing with a single NPC's power, it is much easier to deal with a group of goblins.
Finally, the current situation was something Zhou Tian had anticipated. His heart also clearly understands that the likelihood of the NPCs choosing to focus on and slow down their resistance against him to concentrate on the goblins is greater. As far as this is concerned, there is no way that Zhou Tian wouldn't have an appropriate plan in hand.
