As to our earlier discussed Kingdom of God roles, Jesus requires an additional kingdom role for his servants. It is that of soldiering. He is building an army in preparation for His soon coming Kingdom returning to Earth. (Rev.19: 14-15) Note that the army that follows Him to battle in Rev. 19 consists of saints, that is to say called out human beings. Our warfare presently is spiritual in nature. (See Epheisians chapter 6 and 2 Cor 10:3-5.) In Jude 14-15 and Revelation 19, the spiritual nature of the battle converges with the material creation.
The warfare between God's Kingdom and that of the Adversary involves that which is delineated by Moses to the Israelites just before they were to engage in the battle for Canaan in Deut. 30: Life and Good vs. Death and evil. It also involves Light vs. Darkness and Truth vs. Falsehood. (See John 8:32, 44, and 1 Tim. 4:1)